97-12745. Establishment of Corridors in the Grand Canyon National Park Special Flight Rules Area  

  • [Federal Register Volume 62, Number 94 (Thursday, May 15, 1997)]
    [Proposed Rules]
    [Pages 26902-26908]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 97-12745]
    
    
    
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    Part VI
    
    
    
    
    
    Department of Transportation
    
    
    
    
    
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    Federal Aviation Administration
    
    
    
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    14 CFR Part 93
    
    
    
    Establishment of Corridors in the Grand Canyon National Park Special 
    Flight Rules Area; Proposed Rule
    
    
    
    Air Tour Routes for the Grand Canyon National Park; Notice
    
    Federal Register / Vol. 62, No. 94 / Thursday, May 15, 1997 / 
    Proposed Rules
    
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    DEPARTMENT OF TRANSPORTATION
    
    Federal Aviation Administration
    
    14 CFR Part 93
    
    [Docket No. 28902; Notice No. 97-6]
    RIN 2120-AG38
    
    
    Establishment of Corridors in the Grand Canyon National Park 
    Special Flight Rules Area
    
    AGENCY: Federal Aviation Administration (FAA), DOT.
    
    ACTION: Notice of proposed rulemaking (NPRM).
    
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    SUMMARY: This action proposes to amend two of the Flight-free Zones 
    within the Grand Canyon National Park by establishing two corridors. 
    The first corridor through the Bright Angel Flight Free Zone would be 
    an incentive corridor to be used only by the most noise efficient 
    aircraft. The second corridor through the Torroweap/Shinumo Flight-free 
    Zone would go through the National Canyon area and would create a 
    viable air tour route through the central section of the Park while 
    addressing concerns of the Native Americans. The proposed corridor 
    would not affect the existing Tuckup Corridor currently used by general 
    aviation. These proposals are made in response to comments received on 
    related Grand Canyon rulemaking actions, National Park Service 
    recommends the environmental merit of such routes conducted pursuant to 
    the comments, and ongoing discussions with Native American tribal 
    government units and their representatives.
    
    DATES: Comments must be received on or before June 16, 1997.
    
    ADDRESSES: Comments on this NPRM should be mailed, in triplicate to: 
    Federal Aviation Administration, Office of the Chief Counsel, 
    Attention: Rules Docket (AGC-200), Docket No. 28902, 800 Independence 
    Avenue, SW., Washington, DC 20591. Comments may also be sent 
    electronically to the Rules Docket by using the following Internet 
    address: 9-nprm-cmts@faa.dot.gov. Comments must be marked Docket No. 
    28902. Comments may be examined in the Rules Docket in Room 915G on 
    weekdays between 8:30 a.m. and 5:00 p.m., except on Federal holidays.
    
    FOR FURTHER INFORMATION CONTACT:
    Mr. Dave Metzbower, Air Carrier Operations Branch, AFS-220, Flight 
    Standards Service, Federal Aviation Administration, 800 Independence 
    Avenue, SW., Washington, DC 20591; Telephone: (202) 267-3724. For the 
    draft Environmental Assessment contact Mr. William J. Marx, Division 
    Manager, ATA-300, Federal Aviation Administration, 800 Independence 
    Avenue, SW., Washington, DC, 20591; Telephone: (202) 267-3075.
    
    SUPPLEMENTARY INFORMATION:
    
    Comments Invited
    
        Interested persons are invited to participate in this proposed 
    rulemaking by submitting such written data, views, or arguments as they 
    may desire. Comments relating to the environmental, energy, federalism, 
    or economic impact that may result from adopting the proposals in this 
    notice are also invited. Comments that provide the factual basis 
    supporting the views and suggestions presented are particularly helpful 
    in developing reasoned regulatory decisions. Communications should 
    identify the regulatory docket number and be submitted in triplicate to 
    the above specified address. All communications and a report 
    summarizing any substantive public contact with FAA personnel on this 
    rulemaking will be filed in the docket. The docket is available for 
    public inspection both before and after the closing date for receiving 
    comments.
        Before taking any final action on this proposal, the Administrator 
    will consider all comments made on or before the closing date for 
    comments, and the proposal may be changed in light of the comments 
    received.
        The FAA will acknowledge receipt of a comment if the commenter 
    includes a self-addressed, stamped postcard with the comment. The 
    postcard should be marked ``Comments to Docket No. 28902.'' When the 
    comment is received by the FAA, the postcard will be dated, time 
    stamped, and returned to the commenter.
    
    Availability of the NPRM
    
        Any person may obtain a copy of this NPRM by submitting a request 
    to the Federal Aviation Administration, Office of Rulemaking, 800 
    Independence Avenue SW., Washington, DC 20591, or by calling (202) 267-
    9677. Communications must identify the notice number of this NPRM. 
    Persons interested in being placed on a mailing list for future FAA 
    NPRM's should request a copy of Advisory Circular No. 11-2A, Notice of 
    Proposed Rulemaking Distribution System, which describes application 
    procedures.
        An electronic copy of this document may be downloaded using a modem 
    and suitable communications software from the FAA regulations section 
    of the Fedworld electronic bulletin board service (telephone: 703-321-
    3339), the Federal Register's electronic bulletin board service 
    (telephone: 202-512-1661), or the FAA's Aviation Rulemaking Advisory 
    Committee Bulletin Board Service (telephone: 800-FAA-ARAC). Internet 
    users may reach the FAA's web page at http://www.faa.gov or the Federal 
    Register's webpage at http://www.access.gpo.gov/su__docs for access to 
    recently published rulemaking documents.
    
    History
    
        On December 31, 1996, the FAA published three concurrent actions, a 
    Notice of Proposed Rulemaking (NPRM), a Notice of Availability of 
    Proposed Commercial Air Tour Routes, and a final rule, in the Federal 
    Register (61 FR 69301). These actions are part of an overall strategy 
    to reduce further the impact of aircraft noise on the park environment 
    and to assist the NPS in achieving the statutory mandate imposed by 
    Public Law 100-91.
        The NPRM, Notice No. 96-15, proposed to establish noise limitations 
    for certain aircraft operating in the vicinity of GCNP. The comment 
    period for the NPRM closed on March 31, 1997. Notice No. 96-15 had 
    several purposes. The first was to provide incentives for the use of 
    quieter aircraft within the GCNP. The second was to establish 
    additional noise limitations to reduce further the impact of aircraft 
    noise on the GCNP environment. The third would have lifted for the 
    quietest aircraft the immediate temporary cap placed on the number of 
    aircraft permitted to be used for commercial sightseeing operations in 
    the GCNP.
        The Notice of Availability of Proposed Commercial Air Tour Routes 
    for the GCNP was published with a 30-day comment period that closed on 
    January 30, 1997. The Notice requested comments on the proposed new or 
    modified existing air tour routes, which complement the final rule 
    affecting the Special Flight Rules in the Vicinity of GCNP.
        The final rule amended 14 CFR part 93 of the Federal Aviation 
    Regulations (Part 93) by adding a new subpart which codified and 
    replaced SFAR No. 50-2; modified the dimensions of the GCNP SFRA; 
    established and modified existing flight corridors; established 
    reporting requirements for commercial sightseeing operations; 
    established curfews for operations in the Zuni and Dragon corridors 
    during certain time periods; and placed a temporary limit on the number 
    of aircraft that can be used for commercial sightseeing operations in 
    the GCNP SFRA. The final rule was originally scheduled to become 
    effective May 1, 1997. However, for the
    
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    reasons stated below, the FAA published another final rule on February 
    26, 1997, 62 FR 8861, which changed the effective date to January 31, 
    1998, for those portions of the December 31, 1996, final rule which 
    define the Grand Canyon SFRA (14 CFR Sec. 93.301), define the flight 
    free zones and flight corridors (14 CFR Sec. 93.305), and establish 
    minimum flight altitudes in the vicinity of the GCNP (14 CFR Sec. 
    93.307). The February 26, 1997, final rule also reinstated the 
    corresponding sections of SFAR 50-2 until January 31, 1998.
        In order to meet the May 1, 1997 effective date, the FAA would have 
    had to transmit the data on the proposed routes to the National Ocean 
    Service (NOS) by February 21, 1997. The NOS is the agency responsible 
    for the production and printing of aeronautical charts. The NOS would 
    then have produced by April 1, 1997, an aeronautical chart that would 
    have been used by the air tour operators for training purposes.
        However, during the comment period, the FAA received valuable 
    information from commenters, as well as suggestions for alterations and 
    refinements of the route structure from officials of the GCNP and NPS 
    that could potentially produce noise reduction benefits and also 
    address other related impacts. Both the FAA and the DOI believe that a 
    number of the suggested changes would produce a significantly better 
    rule for GCNP users, the aviation operators, and interested Native 
    American tribes. The FAA had to decide between proceeding with the 
    proposed routes to meet the May 1 final rule effective date, or 
    developing a better and more comprehensive route structure in response 
    to the comments and suggestions. The latter would require additional 
    time for analysis and would not go into effect until after the busy 
    summer tourist season.
        For the reasons stated above, the FAA determined that permitting 
    the final rule to become effective on May 1, 1997, would be contrary to 
    the public interest and, therefore, decided not to send the originally 
    proposed routes to NOS for charting at that time. Rather, the FAA 
    decided to analyze the new ideas with the expectation of creating the 
    best possible routes.
        The FAA's training and checking experience indicates that 
    qualifying air tour pilots on new routes during a peak tourist season 
    when the air traffic is the densest is not the appropriate time for 
    such a transition. At GCNP, the peak season extends approximately from 
    May through October. To afford operators a more favorable opportunity 
    for training on the new routes, the FAA determined that the training 
    should take place after the summer tourist season when the volume of 
    air traffic is lower. Therefore, the FAA determined that January 31, 
    1998, would be an appropriate revised effective date of the new 
    airspace and route structure. This additional time will permit the FAA 
    to develop the best possible route structure, facilitate production and 
    printing of aeronautical charts, and give the operators sufficient time 
    to train their pilots adequately and safely on the new routes after the 
    close of the busy summer season.
        The FAA determined that 5 U.S.C. 553(b) provides sufficient 
    justification to issue a final rule delaying the effective date of the 
    relevant portions of the December 31, 1996 final rule without notice or 
    an opportunity for comment. Therefore, the FAA changed the effective 
    date of 14 CFR 93.301, 93.305, and 93.307 to January 31, 1998, and 
    reinstated the corresponding sections of SFAR 50-2. While there was not 
    sufficient time to allow prior notice or comment concerning the FAA 
    decision to delay the May 1 effective date, the FAA invited comments 
    concerning any other aspect of the notice, including the new 
    implementation date of January 31, 1998. The comment period closed 
    March 24, 1997. The temporary cap provisions, curfews, and reporting 
    requirements were unaffected by these actions and will go into effect 
    for Grand Canyon air tour operators on May 1, 1997.
    
    Public Comments on Proposed Routes and on Noise Limitations NPRM
    
        During the comment period on the Notice of Availability of Proposed 
    Commercial Air Tour Routes for the GCNP, the FAA received valuable 
    information from commenters, as well as suggestions for alterations and 
    refinements of the route structure from officials of the GCNP and NPS 
    that could potentially produce noise reduction benefits. Based on an 
    analysis of these comments and suggestions the FAA issued a new 
    proposed route structure concurrent with the issuance of this proposal. 
    Several of the comments relate to the proposals in this NPRM.
    
    Public Comments on the Central Region
    
        Commenters state that, with the move of air tours south of the 
    National Canyon as required by the expansion of the Toroweap/Shinumo 
    Flight-free Zone, operators will not be able to sell an air tour in the 
    central region of GCNP as passengers would not be able to see the 
    Canyon or its other unique topography. Commenters further believe that 
    the loss of a viable air tour route in the National Canyon area would 
    cause significant and irreparable harm to economic viability of air 
    tour operators and other dependent businesses as well as the local 
    economy. According to commenters, this will result in shifting of 
    traffic to the routes south of the Sanup Flight-free Zone or to the 
    routes around the Bright Angel Flight-free Zone. Commenters fear that 
    the resulting compression and congestion of traffic in those areas will 
    eventually lead to a mid-air collision.
        Other comments address the proposed Blue One Alpha route through 
    the proposed National Canyon Corridor as addressed in Notice 96-15, 
    published December 31, 1996. These commenters believe that no air tour 
    routes should be permitted through the Toroweap-Shinumo Flight-free 
    Zone, even for less noisy (Category C) aircraft. The river corridor 
    from National Canyon to Havasu Creek should receive maximum protection 
    from air tour noise. The addition of the National Canyon to the 
    Toroweap-Shinumo Flight-free Zone was critically necessary for the 
    restoration of natural quiet. Furthermore, commenters allege that this 
    route is non-essential since most of the Las Vegas-Tusayan flights are 
    shuttles to the Canyon and not solely air tours.
        Consultation with the Havasupai Tribe under section 106 of the 
    National Historic Preservation Act also revealed potential impacts on 
    sacred and cultural sites should the National Canyon Corridor be 
    implemented as proposed in the December 31, 1996, NPRM.
        FAA Response: The National Canyon Corridor, as proposed in this 
    NPRM, provides a workable solution to several issues addressed by 
    commenters and raised in consultation with Native American tribes.
        The air tour routes in the central region of the park, as 
    previously proposed on December 31, 1996, did not provide air tour 
    operators using less noise efficient aircraft with a viable air tour 
    route. The proposed incentive route for Category C aircraft would have 
    resulted in a continued level of aircraft activity just north of Supai 
    Village, which is the central location of the Havasupai Tribe. In 
    addition, there would have been a number of flights over some of the 
    sites sacred to the Havasupai Tribe. By altering the National Canyon 
    Corridor, and by permitting all aircraft to use the corridor until 
    December 31, 2001, after which time westbound traffic would only be 
    permitted to traverse the corridor in Category C aircraft, and 
    proposing an
    
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    incentive route on the eastern region of the GCNP, the FAA expects 
    several benefits to accrue.
        First, the Corridor, as proposed in this NPRM, feeds into an 
    altered proposed route that is significantly shorter than that 
    previously proposed. By eliminating the portion of the route north of 
    Supai Village, it eliminates air tour flights around Supai Village, the 
    current home of the Havasupai Tribe, and minimizes and/or avoids 
    increased overflights of the vast majority of their traditional 
    cultural properties, including sacred sites. It also minimizes socio-
    economic impacts to their economy which is based primarily on tourism 
    which in turn is based on the isolated and natural character of the 
    northern part of the reservation.
        Second, this proposal produces positive net effects on the 
    environment over the previous proposal. The redefined corridor 
    traverses a much smaller segment of the Toroweap/Shinumo Flight-free 
    Zone than does the corridor proposed in Notice No. 96-15. While the 
    corridor proposed in this NPRM would be open to all aircraft until 
    December 31, 2001, as opposed to only Category C aircraft as in the 
    previous proposal, the overall effect of aircraft noise is lessened by 
    routing air traffic over less frequently used, less noise-sensitive 
    areas. The FAA believes that permitting only Category C aircraft to be 
    used in westbound traffic of the National Canyon Corridor after 
    December 31, 2001, would work toward further reduction of noise in the 
    corridor.
        Third, this proposal permits the establishment of a viable air tour 
    route in the central region of the GCNP, which will be available to all 
    aircraft. The operators have informed the FAA that the Blue One route, 
    as depicted on December 31, 1996, is not a viable air tour, and that 
    the proposed Blue One Alpha route was an example of a viable air tour 
    route. In view of all of these concerns, the FAA is proposing a route 
    that is similar in nature to the previously proposed Blue One Alpha but 
    would permit all operators to operate on a viable route in the central 
    region of the GCNP and provide relief to a number of areas that are 
    considered sacred to the Havasupai Nation.
        This proposal avoids the economic harm which otherwise could be 
    expected to accrue to air tour operators should they be deprived of a 
    viable air tour route through the central region of the GCNP.
        Finally, the FAA believes that a viable air tour route over the 
    central region of the park, open to all aircraft until December 31, 
    2001, would promote air safety. The FAA believes that if there were not 
    a viable air tour route in the central region of the GCNP, operators 
    would divert their operations to the routes south of the Sanup Flight-
    free Zone resulting in compression of traffic. The corridor as proposed 
    in this NPRM enhances air traffic safety by removing a factor that 
    could lead to compression of traffic in the routes south of the Sanup 
    Flight-free Zone. In the absence of the proposed corridor, and 
    associated route, the potential for unsafe operating conditions could 
    lead to mid-air collision due to the resulting compression of air 
    traffic.
        Athough the FAA believes that there are many advantages to the 
    National Canyon route as proposed, it also acknowledges that the actual 
    users of the GCNP--air tour operators, Native Americans, and Park 
    visitors--may suggest an alternate route that could be more viable than 
    the exact route proposed. Therefore, based on comments received and on 
    further consultation with Native Americans, the FAA advises commenters 
    that the route, as proposed, may be altered in the final rule.
    
    Public Comments on the Eastern Region
    
        Some commenters state that the routes proposed in the December 31, 
    1996, notice of availability offer no reduction of aircraft sound in 
    the eastern and most sensitive region of GCNP and that there should be 
    route incentives for quiet airplanes.
        The FAA has also conducted a preliminary review of the comments 
    received on Notice 96-15. Most of the comments received on that NPRM 
    will be addressed in a future final rule.
        FAA Response: The expansion of the Bright Angel Flight-free Zone is 
    a significant step towards achieving the substantial restoration of 
    natural quiet in the eastern region of the GCNP by relocating the air 
    tour aircraft to the north of an expanded Flight-free Zone. While this 
    modification is beneficial for a major part of the eastern region, the 
    expansion does create a concentration of aircraft in the northeastern 
    end of the GCNP SFRA north of the Bright Angel Flight-free Zone.
        The NPS reviewed this situation and recommended that a new 
    incentive route should be available for the most noise efficient 
    aircraft. This proposed corridor would pass through the Bright Angel 
    Flight-free Zone along the northern boundary of the current Bright 
    Angel Flight-free Zone as defined in SFAR 50-2. The proposed Bright 
    Angel Corridor would have a three-fold benefit. First, fewer aircraft 
    would be flying over the northern rim of the canyon along Saddle 
    Mountain, where the NPS has pointed out some noise sensitivity. Second, 
    noise from the air tour aircraft would be dispersed between the 
    northern boundary of the new Bright Angel Flight-free Zone and the 
    proposed corridor, thereby reducing the level of concentrated aircraft 
    noise along any one route. Third, opening this corridor only to the 
    most noise efficient aircraft would provide a valuable and tangible 
    incentive for the air tour operators to convert to quieter aircraft 
    well before they are required to do so. The GCNP could thereby 
    experience the benefit of an earlier reduction in the level of aircraft 
    noise.
        The FAA agrees with this analysis. For that reason, the FAA is 
    proposing the creation of the Bright Angel Corridor available for use 
    only by the most efficient aircraft.
    
    The Proposal
    
        The FAA proposes to create two corridors that pass through flight-
    free zones.
        One corridor would be through the Bright Angel Flight-free Zone 
    along the route that is currently depicted on the Grand Canyon VFR 
    Aeronautical Chart as the Green One Alpha and Black One Alpha. The 
    establishment of this corridor would mitigate any potential adverse 
    effects by dispensing the noise from air tour aircraft through out the 
    eastern sector of the park. This corridor, one mile in width, is being 
    proposed for the most noise efficient aircraft only.
        The second proposed corridor, which is two miles in width, would be 
    through the Toroweap/Shinumo Flight-free Zone in that portion of that 
    Flight-free Zone which covers the National Canyon area. This corridor 
    is proposed to allow the route known currently as the Blue One on the 
    Grand Canyon VFR Aeronautical Chart and as Blue One Alpha on the 
    Proposed Air Tour Routes map to continue through that portion of the 
    Toroweap/Shinumo Flight-free Zone that covers the National Canyon area. 
    At the approximate point (estimated to be within 1 to 3 miles) where 
    the current Blue One or proposed Blue One Alpha makes its first right 
    turn in the National Canyon area the route would turn southeast from 
    that point intercepting a route that goes directly to Tusayan.
        The FAA proposes to place the corridor through the National Canyon 
    area in a location that will provide the greatest amount of noise 
    mitigation for Grand Canyon National Park and the Havasupai tribe, 
    while addressing the economic concerns of the air tour industry. The 
    official position of the Havasupai is that there should be no air tour 
    routes over Havasupai tribal lands.
    
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    After a meeting between the tribe and the FAA on April 9, 1997, the 
    Havasupai representatives agreed to present the FAA's suggestions to 
    the Tribal Council and to discuss possible ways of dealing with the 
    issue. The FAA is working with the Havasupai to minimize any potential 
    adverse effects and will continue to work with the tribal and monitor 
    the situation in the future. Therefore, the FAA is requesting comments 
    on this specific proposal as well as alternative placements of a 
    corridor in the National Canyon area.
        Based on comments from the public and further consultation with 
    Native Americans, the FAA may alter the routes to create the most 
    viable route structure in the GCNP for all concerned. The FAA advises 
    the public that comments on the proposed routes or any alternative 
    routes should be sufficiently detailed and show definitive benefits so 
    that they may be adopted in a final rule.
    
    Relationship of This NPRM to Other Actions
    
        As previously stated, the FAA published three actions on December 
    31, 1996, that related to the airspace management of the GCNP. One of 
    those actions was a final rule that established a reporting requirement 
    on the air tour operators, established operational curfews on certain 
    air tour routes within the GCNP, and temporarily restricted the number 
    of aircraft that could be operated on commercial air tour routes within 
    the GCNP. These three provisions will become effective on May 1, 1997. 
    The final rule, as amended on February 26, 1997, also enlarged the 
    existing flight free zones in the GCNP. Those provisions will become 
    effective on January 31, 1998.
        A Notice of Availability of Routes was the second of the three 
    actions published on December 31, 1996. The FAA issued a map that 
    delineated proposed routes for air tour operations within the GCNP. 
    Subsequent comments on the proposed routes from the air tour operators, 
    environmental groups, and Native American tribal government units 
    strongly supported alternative routes that could protect the sacred 
    sites of the Native Americans, further reduce aircraft overflight 
    noise, and continue to provide viable air tour routes for the 
    operators. Based on those comments, concurrent with the issuance of 
    this proposal, the FAA issued further refinements to the air tour 
    routes previously proposed. The FAA will consider the comments already 
    received along with the new comments submitted by the end of the 
    current comment period. The FAA plans to release a chart that depicts 
    the air tour routes which can be used for training and familiarizing 
    the operators well in advance of the January 31, 1998, effective date 
    of the expansion of the flight free zones. The new routes would also 
    become effective on January 31, 1998.
        In addition to the two actions listed above, the FAA also published 
    an NPRM on December 31, 1996, proposing a methodology and outlining the 
    effects of classifying the air tour aircraft in noise efficiency 
    categories. The categories are based on the concept that the most 
    desirable aircraft to be used in the GCNP are those aircraft that can 
    accommodate air tour passengers with the least amount of noise per 
    seat. The comment period on the NPRM closed on March 31, 1997. The FAA 
    will address the comments received on the NPRM issues in a subsequent 
    rulemaking. However, comments pertaining to the National Canyon 
    Corridor will be addressed in the final rule to this action.
        The comments received on all the above mentioned actions, together 
    with the information obtained through continuing discussions with the 
    Native American tribes, form the basis of this action. Specifically, 
    the comments concerning the need for quiet incentive routes and the 
    location of the Blue One Alpha route that would feed into the National 
    Canyon Corridor prompted the FAA to review the airspace structure 
    within the GCNP and to propose the two new routes contained in this 
    NPRM. Comments previously submitted in other actions that pertain to 
    incentive routes and the National Canyon Corridor are addressed in this 
    NPRM. Even though this action is related to other actions, it does not 
    attempt to finalize any proposal made elsewhere. Therefore, the 
    proposals in this NPRM should be viewed in conjunction with other 
    actions and proposals, but should not be viewed as completing any other 
    action.
    
    Environmental Review
    
        The FAA is reevaluating the Final Environmental Assessment dated 
    December 24, 1996, for the Special Flight Rules in the Vicinity of the 
    GCNP to determine whether the proposed changes in this NPRM and the 
    second Notice of Availability of Proposed Routes are substantial so as 
    to warrant preparation of additional environmental documents. This 
    reevaluation is being done in accordance with the National 
    Environmental Policy Act of 1969 and other applicable environmental 
    requirements. Copies of the written reevaluation will be circulated to 
    interested parties and placed in the docket. For those unable to view 
    the document in the docket, the written reevaluation can be obtained 
    from Mr. William J. Marx, Division Manager, ATA-300, Federal Aviation 
    Administration, 800 Independence Ave., SW, Washington, DC 20591, 
    Telephone: (202) 267-3075. Comments concerning the environmental 
    impacts of adopting this proposal or the written reevaluation should be 
    submitted to the docket before the comment period closes. Before any 
    final rule is issued, based on any comments and the written 
    reevaluation, the FAA will determine whether any further environmental 
    review is warranted.
    
    Economic Summary
    
        Any changes to Federal regulations must undergo several economic 
    analyses. First, Executive Order 12866 directs that each Federal agency 
    shall propose or adopt a regulation only upon a reasoned determination 
    that the benefits of the intended regulation justify its costs. Second, 
    the Regulatory Flexibility Act of 1980 requires agencies to analyze the 
    economic effect of regulatory changes on small entities. Third, the 
    Office of Management and Budget directs agencies to assess the effect 
    of regulatory changes on international trade.
        In conducting these analyses, the FAA has determined that this 
    proposed rulemaking, when viewed as a component of and in conjunction 
    with other actions recently published by the FAA, is cost relieving to 
    one-half of the small entities significantly impacted economically. The 
    remaining operators affected by this proposed rulemaking, however, 
    would be significantly impacted by this NPRM in that they would be 
    required to absorb higher average annual variable operating costs 
    imposed by the GCNP final rule (Dec. 31, 1996 at 61 FR 69302).
        Because of the continued high public interest surrounding GCNP 
    regulation, the FAA has determined that this NPRM does constitute a 
    ``significant regulatory action'' based on the criteria outlined in 
    E.O. 12866. This NPRM, in accordance with OMB directives, however, 
    would not have a significant affect on international trade. A full 
    regulatory evaluation of the proposal is in the docket.
    
    Costs
    
        The possible quantifiable economic effects for this NPRM are 
    derived from the estimated costs germane to the two affected flight-
    free zones (FFZ's) as developed in the final rule 61 FR 69302, 
    published December 31, 1996. These initial estimates were adjusted to 
    take
    
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    into account the effects of a subsequent final rule (Feb. 26, `97 at 62 
    FR 8862), which delayed the effective date of the expansion of the 
    FFZ's as stated in 14 CFR Sec. 93.305 to January 31, 1998. With regard 
    to the Bright Angel FFZ, the FAA estimated in final rule 61 FR 69302 
    that there would be no net operating losses, and hence, no added costs 
    to the GCNP commercial sightseeing operators associated with the 
    northward extension of this FFZ. The FAA assumed in that analysis, that 
    this increase in average annual variable operating costs would be 
    offset by an equal $1.0 million average annual increase in ticket 
    prices. The FAA therefore, concluded in final rule 61 FR 69302, that no 
    net operating losses (operating revenue minus variable operating costs) 
    would be borne by GCNP commercial sightseeing tour operators as a 
    result of the extension of the Bright Angel FFZ. Thus, the full 
    societal cost of a $1.0 million average annual increase in commercial 
    sightseeing prices would be borne by the consumer.
        Only one fixed-wing operator, utilizing three 19-seat Vistaliners, 
    which are Category C aircraft, would be able to conduct commercial 
    sightseeing tours along the proposed flight corridor traversing the 
    Bright Angel FFZ. This operator, however, accounted for approximately 
    4,900 tours, 88,300 passengers, and $5.3 million in total operating 
    revenues in 1995. This operator also accounted for approximately 
    $538,000 of the more than $1.0 million in increased average annual 
    variable operating costs and prices estimated in final rule 61 FR 
    69302. The FAA assumes the operator of Category C aircraft would 
    continue to conduct commercial sightseeing tours along the Alpha routes 
    as always, and this would eliminate over one-half of the variable 
    operating cost and tour price increases previously estimated in final 
    rule 61 FR 69302. The remaining increase in variable operating costs 
    and tour prices estimated in final rule 61 FR 69302 ($497,000) would 
    continue, and would remain as an on-going cost of final 61 FR 69302. 
    However, these costs would be transferred from a cost to the consumer 
    (increased prices) to a cost to the operators of Category A and 
    Category B aircraft (net operating revenue loss). This is because 
    operators of Category A and Category B aircraft would be required to 
    maintain their current tour prices in order to remain competitive with 
    the Category C operator who would no longer need to raise his tour 
    prices. Thus, the FAA estimates the cost savings of the proposed flight 
    corridor through the Bright Angel FFZ for Category C aircraft only, 
    would be a reduction of $538,000 in average annual variable operating 
    costs for operators of these aircraft; operators of Category A and 
    Category B aircraft would have to absorb the added variable operating 
    cost of the longer route established for them in final rule 61 FR 
    69302.
        With regard to the southward extension of the Toroweap/Shinumo FFZ 
    concurrent with the elimination of commercial sightseeing access to the 
    National Canyon portion of what is referred to as the ``Blue 1, Blue 
    Direct'' commercial sightseeing tour, the FAA estimated a reduction in 
    net operating revenues in final 61 FR 69302. This loss resulted from 
    the expected lowering of commercial sightseeing tour prices due to the 
    elimination of the most scenic aerial portion of the overall commercial 
    sightseeing package offset to some degree, by lower variable operating 
    costs due to the shortening of the tour route. The FAA estimated this 
    loss to be in excess of $2.5 million in reduced average annual net 
    operating revenue and was derived by subtracting the estimated 
    reduction of $2.5 million in average annual variable operating costs 
    from the estimated average annual revenue loss of $5.0 million.
        Incorporaitng adjustments to reflect a partial restoration of the 
    National Canyon portion of the ``Blue 1, Blue Direct'' air tour, the 
    FAA estimates that the proposed flight corridor through the Toroweap/
    Shinumo FFZ would lower the average annual net operating revenue loss 
    as previously estimated in final rule 61 FR 69302 form $2.5 million to 
    just over $1.7 million for the time period 1998-2008. This reduction in 
    average annual net operating revenue losses of $712,000 results from a 
    comparable reduction in average annual revenue losses from a previously 
    estimated $5.0 million to $2.5 million ($2.5 million) which in turn is 
    offset by a lowering of the reduced variable operating costs from a 
    previously estimated $2.5 million to $758,000 ($1.8 million). Thus, the 
    FAA estimates the cost savings of the proposed flight corridor through 
    the Toroweap/Shinumo FFZ for all aircraft would be a reduction of 
    $712,000 in average annual net operating revenue losses as previously 
    estimated in final rule 61 FR 69302.
        Adding commercial sightseeing flights per aircraft between Las 
    Vegas and Tusayan along the proposed flight corridor through the 
    Toroweap/Shinumo FFZ is not a viable option for these GCNP commercial 
    sightseeing operators. As was future in final 61 FR 69302, the 
    reduction in total commercial sightseeing tour aircraft flying time 
    does not provide sufficient savings in aggregate daily flying time to 
    allow operators to expand their number of daily commercial sightseeing 
    flights per aircraft.
        The cost of the proposed rule would be any adverse impact of the 
    two proposed flight corridors on the restoration of natural quiet in 
    the canyon. The potential adverse impact cannot be quantified in this 
    NPRM. The FAA solicits comments on ways to quantify the effects on the 
    restoration of the natural quiet in this proposed rule. The more 
    detailed those comments, the better able the FAA will be to assess 
    those benefits in a final rule. The Bright Angel FFZ corridor would 
    create an additional incentive for air tour operators to use Category C 
    aircraft. The Toroweap/Shinumo FFZ corridor would permit the continued 
    operation of an air tour in that area, tours which were seriously 
    affected by final rule 61 FR 69302. Taken together, both of these 
    proposed corridors would benefit the GCNP commercial sightseeing 
    operators.
    
    Benefits
    
        The benefits associated with this NPRM include (1) A more rapid 
    conversion to quieter aircraft in response to an inceptive route for 
    operators of noise efficient Category C aircraft; (2) the shifting away 
    of a commercial sightseeing tour route away from cultural and historic 
    sites of the Havasupai Tribe that would enhance the sacredness and 
    preservation of these sites; and (3) the restoration of an air tour 
    route between Las Vegas and Grand Canyon Airport that reduces average 
    annual net operating revenue losses. The particular groups that would 
    benefit most from this rulemaking action are the Havasupai Tribe and 
    some of the operators and consumers of GCNP commercial sightseeing 
    tours, particularly those able to use or convert to quieter aircraft.
        The establishment of the proposed corridor for noise efficient 
    Category C aircraft through the Bright Angel FFZ along the ``Alpha'' 
    routes would reduce increased aircraft noise created by the 
    consolidation of aircraft overflight noise at the northern edge of the 
    expanded FFZ as described in final rule 61 FR 69302. Furthermore, to 
    the extend the consumer perceives the current shorter, more established 
    commercial sightseeing tour through the proposed flight corridor as 
    having a greater value, then demand for these tours conducted in the 
    more noise efficient Category C aircraft would increase. Concurrently, 
    demand for the longer sightseeing tours conducted in Category A and 
    Category
    
    [[Page 26907]]
    
    B aircraft would decrease. As stated earlier, the operators of these 
    aircraft have to absorb the remaining $497,000 increase in average 
    annual variable operating costs re-estimated in final rule 61 FR 69302. 
    In addition, they might also face a decline in revenues as patronage 
    shifts to air tours offered in Category C aircraft. In combination, 
    these two potential outcomes of this proposed rulemaking could create a 
    significant incentive for operators of Category A and Category B 
    aircraft to convert to Category C aircraft sooner than was proposed in 
    61 FR 69334, leading to a more rapid mitigation of noise in GCNP.
        Comments received on Notice No. 96-11 state that the use of noise 
    efficient aircraft will, in the long run, provide the most benefit 
    toward restoring natural quiet. There is an outstanding NPRM on the 
    issue of noise limitations for certain aircraft operated in GCNP 
    (Notice No. 96-15). Without prejudging Notice No. 96-15, but as an 
    incentive to the operators to convert to more noise efficient aircraft 
    as rapidly as possible, this proposed rule would allow operators using 
    quieter Category C aircraft to continue using the Bright Angel Corridor 
    for the Zuni-Dragon air tour on the east end of the Grand Canyon, and 
    on the west end, would allow operators using quieter Category C 
    aircraft to continue using the National Canyon air tour route on return 
    trips from the Grand Canyon to Las Vegas after the year 2001.
        In consideration of Havasupai concerns regarding commercial 
    sightseeing overflights of their ancestral lands, the FAA is proposing 
    an abridged ``Blue 1A'' route in conjunction with the proposed 
    Toroweap/Shinumo FFZ. The proposed abridged ``Blue 1A'' route 
    effectively avoids 90 percent of Havasupai cultural and historic lands. 
    The economic benefit of this facet of the NPRM to this Native American 
    Tribe, however, is inherent and non-quantifiable, but nevertheless, 
    very real.
    
    Economic Evaluation Summary
    
        The FAA has determined that the average annual cost savings of this 
    NPRM from the years 1998-2008, would be about $1.25 million. That 
    portion of the average annual cost savings attributable to the proposed 
    flight corridor through the Bright Angel FFZ is accounted for by a 
    reduction of $538,000 in the previously estimated increase in average 
    annual variable operating costs. That portion of the total average 
    annual cost savings attributable to the proposed flight corridor 
    through the Toroweap/Shinumo FFZ is accounted for by a reduction of 
    $712,000 in the previously estimated average annual loss in net 
    operating revenue. Except for potential adverse noise effects, the FAA 
    therefore concludes that this NPRM would be cost relieving.
    
    Initial Regulatory Flexibility Analysis
    
        By both law and executive order, Federal regulatory agencies are 
    required to consider the impact of proposed regulations on small 
    entities. Executive Order 12866 ``Regulatory Planning and Review'', 
    dated September 30, 1993, states that:
    
        Each agency shall tailor its regulations to impose the least 
    burden on society, including individuals, businesses of different 
    sizes, and other entities (including small communities and 
    governmental entities), consistent with obtaining the regulatory 
    objectives, taking into account, among other things, and to the 
    extent practicable, the cost of cumulative regulations.
    
        The 1980 ``Regulatory Flexibility Act'' (RFA) requires Federal 
    agencies to prepare an initial regulatory flexibility analysis of any 
    notice of proposed rulemaking that will have a significant economic 
    impact on a substantial number of small entities. The definition of 
    small entities and guidance material for making determinations required 
    by the RFA are contained in the Federal Register [47 FR 32825, July 29, 
    1982]. Federal Aviation Administration (FAA) order 2100.14A outlines 
    the agency's procedures and criteria for implementing the RFA.
        With respect to this proposed rule, a ``small entity'' is a 
    commercial sightseeing operator that owns or operates nine or fewer 
    aircraft. A significant economic impact on a small entity is defined as 
    an annualized net compliance cost to such a small commercial 
    sightseeing operator. In the case of scheduled operators of aircraft 
    for hire having less than 60 passenger seats, a ``significant economic 
    impact'' or cost threshold, is defined as an annualized net compliance 
    cost level that exceeds $69,800; for unscheduled operators the 
    threshold is $4,900. A substantial number of small entities is defined 
    as a number that is more than one-third of the small commercial 
    sightseeing operators (but not less than eleven operators) subject to 
    the proposed rule. The Federal Aviation Administration has determined 
    that this proposal could have a significant economic impact on most of 
    the small commercial sightseeing operators conducting flights within 
    Grand Canyon National Park and therefore, has prepared this initial 
    regulatory flexibility analysis.
        The proposed rulemaking could affect a substantial number of the 
    commercial sightseeing operators conducting tour flights in Grand 
    Canyon National Park under 14 CFR part 135. The commercial sightseeing 
    operators affected are those providing commercial sightseeing tours 
    currently operating along the ``Blue 1'', ``Black 1'', and ``Green 1'' 
    tour routes who would be permitted to conduct commercial sightseeing 
    tours along the flight corridors proposed by this NPRM. FAA data 
    indicate that in 1995, of the 31 identified GCNP commercial sightseeing 
    operators, 25 conducted air tours along the affected routes, and of 
    these, 20 were potentially affected small commercial sightseeing 
    operators, each owning, but not necessarily operating 9 or fewer 
    aircraft. These operators owned a total of 61 aircraft and the average 
    fleet consisted of about 3 airplanes. The FAA therefore, estimates that 
    20 operators, which are also small entities, could be impacted by the 
    proposed rule. This impact is as discussed in the preceding analysis of 
    the full regulatory evaluation.
        The Federal Aviation Administration, however, has determined that 
    this proposal, when viewed as a component of and in conjunction with 
    other actions (the FAA published three actions on December 31, 1996, 
    and one action on February 26, 1997, that related to the airspace 
    management of the GCNP) is cost relieving to one-half of these small 
    entities. The remaining operators affected by this proposed rulemaking 
    would be required to absorb higher average annual variable operating 
    costs imposed by final rule 61 FR 69302.
    
    International Trade Impact Assessment
    
        The FAA has determined that the proposed rulemaking would have no 
    affect on non-U.S. operators of foreign aircraft operating outside the 
    United States nor would it have an affect on U.S. trade or trade 
    relations. However, because the proposed rulemaking has been determined 
    to be cost beneficial to commercial sightseeing operators and a large 
    proportion of GCNP commercial sightseeing passengers are foreign, it 
    could have a positive affect on foreign tourism in the U.S. The FAA 
    cannot put a dollar value on the potential gain in commercial air tour 
    sightseeing revenue associated with possible increases in foreign tour 
    dollars.
    
    Federalism Implications
    
        The regulations herein would not have substantial direct effects on 
    the states, on the relationship between the national government and the 
    states, or on the distribution of power and responsibilities among the 
    various
    
    [[Page 26908]]
    
    levels of government. Therefore, in accordance with Executive Order 
    12866, it is determined that this rule does not have sufficient 
    federalism implications to warrant the preparation of a Federalism 
    Assessment.
    
    Paperwork Reduction Act
    
        In accordance with the Paperwork Reduction Act of 1995 (Pub. L. 
    104-13), there are no requirements for information collection 
    associated with the proposed regulation.
    
    Conclusion
    
        For the reasons set forth above, the FAA has determined that this 
    proposed rule is a significant regulatory action under Executive Order 
    12866. In addition, the FAA certifies that this proposal would have a 
    significant economic impact, positive or negative, on a substantial 
    number of small entities under the criteria of the Regulatory 
    Flexibility Act. This proposed rule is considered significant under DOT 
    Regulatory Policies and Procedures.
    
    List of Subjects in 14 CFR Part 93
    
        Air traffic control, Airports, Navigation (Air), Reporting and 
    recordkeeping requirements.
    
    The Proposed Amendment
    
        For the reasons set forth above, the Federal Aviation 
    Administration proposes to amend 14 CFR part 93 as follows:
    
    PART 93--SPECIAL AIR TRAFFIC RULES AND AIRPORT TRAFFIC PATTERNS
    
        1. The authority citation for part 93 continues to read as follows:
    
        Authority: 49 U.S.C. 106(g), 40103, 40106, 40109, 40113, 44502, 
    44514, 44701, 44719, 46301.
    
        2. Section 93.305 is amended by adding a new sentence to the end of 
    paragraph (b) and by adding a new sentence to the end of paragraph (c) 
    to read as follows:
    
    
    Sec. 93.305  Flight-free zones and flight corridors.
    
    * * * * *
        (b) * * * The Bright Angel Flight-free Zone does not include the 
    following airspace designated as the Bright Angel Corridor: that 
    airspace one-half nautical mile on either side of a line extending from 
    Lat. 36 deg.14'21.24'' N., Long. 112 deg.08'57.54'' W. and Lat. 
    36 deg.14'15.32'' N., 111 deg.55'07.32'' W.
        (c) * * * The airspace designated as the ``National Canyon 
    Corridor'': at or above 7,500 feet MSL within 2 nautical miles either 
    side of a line extending east, southeast from Lat. 36 deg.14'01'', 
    Long. 112 deg.53'38'' to Lat. 36 deg.14'24'', Long. 112 deg.52'30'' to 
    Lat. 36 deg.15'01'', Long. 112 deg.50'37'' to Lat. 36 deg.14'53'', 
    Long. 112 deg.49'10'' to Lat. 36 deg.14'05'', Long. 112 deg.48'39'' to 
    Lat. 36 deg.06'58'', Long. 112 deg.44'21''.
        3. Section 91.306 is added to read as follows:
    
    
    Sec. 93.306  Operation of GCNP Category C Aircraft in National Canyon 
    Corridor and Bright Angel Corridor.
    
        No person may operate an aircraft westbound within the National 
    Canyon Corridor after December 31, 2001, or in the Bright Angel 
    Corridor within the Special Flight Rules Area unless the aircraft is a 
    commercial sightseeing operation aircraft that meets the GCNP Category 
    C aircraft standard, as defined in Sec. 93.319.
        4. Section 93.307 is amended by adding paragraphs (b)(3) and (b)(4) 
    as follows:
    
    
    Sec. 93.307  Minimum flight altitudes.
    
    * * * * *
        (b) * * *
        (3) National Canyon Corridor. 7,500 feet MSL.
        (4) Bright Angel Corridor. GCNP Category C helicopters, 9,500 feet 
    MSL; GCNP Category C airplanes, 10,000 feet MSL.
    
        Issued in Washington, DC on May 12, 1997.
    
        Dated: May 12, 1997.
    W. Michael Sacrey,
    Acting Director, Flight Standards Service.
    [FR Doc. 97-12745 Filed 5-12-97; 4:35 pm]
    BILLING CODE 4910-13-M
    
    
    

Document Information

Published:
05/15/1997
Department:
Federal Aviation Administration
Entry Type:
Proposed Rule
Action:
Notice of proposed rulemaking (NPRM).
Document Number:
97-12745
Dates:
Comments must be received on or before June 16, 1997.
Pages:
26902-26908 (7 pages)
Docket Numbers:
Docket No. 28902, Notice No. 97-6
RINs:
2120-AG38: Establishment of Corridors in the Grand Canyon National Park Special Flight Rules Area
RIN Links:
https://www.federalregister.gov/regulations/2120-AG38/establishment-of-corridors-in-the-grand-canyon-national-park-special-flight-rules-area
PDF File:
97-12745.pdf
CFR: (3)
14 CFR 93.305
14 CFR 93.306
14 CFR 93.307