2018-11141. Airworthiness Directives; Bombardier, Inc., Airplanes  

  • Start Preamble

    AGENCY:

    Federal Aviation Administration (FAA), DOT.

    ACTION:

    Notice of proposed rulemaking (NPRM).

    SUMMARY:

    We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This proposed AD was prompted by a report of uncommanded deployment of the ground spoilers when the power levers were advanced for takeoff, which was caused by faulty switches in the power lever module. This proposed AD would require revising the maintenance or inspection program, as applicable. We are proposing this AD to address the unsafe condition on these products.

    DATES:

    We must receive comments on this proposed AD by July 9, 2018.

    ADDRESSES:

    You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:

    • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
    • Fax: 202-493-2251.
    • Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
    • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

    For service information identified in this NPRM, contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-4539; email thd.qseries@aero.bombardier.com; internet http://www.bombardier.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195.

    Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0449; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt.

    Start Further Info

    FOR FURTHER INFORMATION CONTACT:

    John P. DeLuca, Aerospace Engineer, Avionics and Administrative Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7369; fax 516-794-5531; email 9-avs-nyaco-cos@faa.gov.

    End Further Info End Preamble Start Supplemental Information

    SUPPLEMENTARY INFORMATION:

    Comments Invited

    We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include “Docket No. FAA-2018-0449; Product Identifier 2018-NM-042-AD” at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. We will consider all comments received by the closing date and may amend this NPRM based on those comments.

    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this NPRM.

    Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian Airworthiness Directive CF-2017-35, dated November 29, 2017 (referred to after this as the Mandatory Continuing Airworthiness Information, or “the MCAI”), to correct an unsafe condition for certain Bombardier, Inc., Model Start Printed Page 24249DHC-8-400 series airplanes. The MCAI states:

    There has been an incident of uncommanded deployment of the ground spoilers when the power levers were advanced for take-off. The warning horn sounded and the pilot rejected the take-off. The subsequent investigation determined the root cause of the spoiler deployment was faulty switches in the power lever module. An uncommanded deployment of the ground spoilers may lead to a runway excursion.

    This [Canadian] AD mandates the incorporation of a new Certification Maintenance Requirement (CMR) task to check the ground spoiler switches in the power lever module.

    Required actions include revising the maintenance or inspection program, as applicable. You may examine the MCAI in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0449.

    Related Service Information Under 1 CFR Part 51

    Bombardier has issued Q400 Dash 8 (Bombardier) Temporary Revision ALI-0173, dated March 14, 2017, to Section 1-27, Certification Maintenance Requirements of the Maintenance Requirements Manual (MRM) Part 2, of Product Support Manual (PSM) 1-84-7. This service information describes CMR Task 276000-110, “Operational Check of the Ground Spoiler Switches in the Power Lever Module.” This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section.

    FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with the State of Design Authority, we have been notified of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all pertinent information and determined an unsafe condition exists and is likely to exist or develop on other products of the same type design.

    Costs of Compliance

    We estimate that this proposed AD affects 86 airplanes of U.S. registry.

    We estimate the following costs to comply with this proposed AD:

    We have determined that revising the maintenance or inspection program takes an average of 90 work-hours per operator, although we recognize that this number may vary from operator to operator. In the past, we have estimated that this action takes 1 work-hour per airplane. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), we have determined that a per-operator estimate is more accurate than a per-airplane estimate. Therefore, we estimate the total cost per operator to be $7,650 (90 work-hours × $85 per work-hour).

    Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority.

    We are issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: “General requirements.” Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

    This proposed AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to transport category airplanes to the Director of the System Oversight Division.

    Regulatory Findings

    We determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government.

    For the reasons discussed above, I certify this proposed regulation:

    1. Is not a “significant regulatory action” under Executive Order 12866;

    2. Is not a “significant rule” under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979);

    3. Will not affect intrastate aviation in Alaska; and

    4. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

    Start List of Subjects

    List of Subjects in 14 CFR Part 39

    • Air transportation
    • Aircraft
    • Aviation safety
    • Incorporation by reference
    • Safety
    End List of Subjects

    The Proposed Amendment

    Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

    Start Part

    PART 39—AIRWORTHINESS DIRECTIVES

    End Part Start Amendment Part

    1. The authority citation for part 39 continues to read as follows:

    End Amendment Part Start Authority

    Authority: 49 U.S.C. 106(g), 40113, 44701.

    End Authority
    [Amended]
    Start Amendment Part

    2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD):

    End Amendment Part

    Bombardier, Inc.: Docket No. FAA-2018-0449; Product Identifier 2018-NM-042-AD.

    (a) Comments Due Date

    We must receive comments by July 9, 2018.

    (b) Affected ADs

    None.

    (c) Applicability

    This AD applies to Bombardier, Inc., Model DHC-8-400, -401, and -402 airplanes, certificated in any category, serial numbers 4001 and subsequent.

    (d) Subject

    Air Transport Association (ATA) of America Code 27, Flight controls.

    (e) Reason

    This AD was prompted by a report of uncommanded deployment of the ground spoilers when the power levers were advanced for takeoff, which was caused by faulty switches in the power lever module. We are issuing this AD to address faulty switches in the power lever module, which could result in uncommanded deployment of the ground spoilers and a possible runway excursion.

    (f) Compliance

    Comply with this AD within the compliance times specified, unless already done.

    (g) Revision of Maintenance or Inspection Program

    Within 30 days after the effective date of this AD: Revise the maintenance or inspection program, as applicable, to incorporate the information specified in Certification Maintenance Requirements Start Printed Page 24250(CMR) Task 276000-110 of Q400 Dash 8 (Bombardier) Temporary Revision ALI-0173, dated March 14, 2017, to Section 1-27, Certification Maintenance Requirements of the Maintenance Requirements Manual (MRM) Part 2, of Product Support Manual (PSM) 1-84-7.

    (h) Initial Compliance Time

    The initial compliance time for doing the CMR Task 276000-110 specified in paragraph (g) of this AD is within 8,000 flight hours after the effective date of this AD.

    (i) No Alternative Actions or Intervals

    After the maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (j)(1) of this AD.

    (j) Other FAA AD Provisions

    The following provisions also apply to this AD:

    (1) Alternative Methods of Compliance (AMOCs): The Manager, New York ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; fax 516-794-5531. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office.

    (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, New York ACO Branch, FAA; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature.

    (k) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian Airworthiness Directive CF-2017-35, dated November 29, 2017, for related information. This MCAI may be found in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0449.

    (2) For more information about this AD, contact John P. DeLuca, Aerospace Engineer, Avionics and Administrative Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7369; fax 516-794-5531; email 9-avs-nyaco-cos@faa.gov.

    (3) For service information identified in this AD, contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-4539; email thd.qseries@aero.bombardier.com; internet http://www.bombardier.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St, Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195.

    Start Signature

    Issued in Des Moines, Washington, on May 15, 2018.

    Dionne Palermo,

    Acting Director, System Oversight Division, Aircraft Certification Service.

    End Signature End Supplemental Information

    [FR Doc. 2018-11141 Filed 5-24-18; 8:45 am]

    BILLING CODE 4910-13-P

Document Information

Published:
05/25/2018
Department:
Transportation Department
Agency:
Federal Aviation Administration
EntryType:
Proposed Rule
Action:
Notice of proposed rulemaking (NPRM).
Document Number:
2018-11141
Dates:
We must receive comments on this proposed AD by July 9, 2018.
Pages:
24248-24250 (3 pages)
Docket Numbers:
Docket No. FAA-2018-0449, Product Identifier 2018-NM-042-AD
RIN:
2120-AA64: Airworthiness Directives
RINLinks:
https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives
SectionNoes:
39.13
Topics:
Air transportation, Aircraft, Aviation safety, Safety
PDF File:
2018-11141.pdf
CFR: (1)
14 CFR 39.13