[Federal Register Volume 63, Number 136 (Thursday, July 16, 1998)]
[Rules and Regulations]
[Pages 38287-38289]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-18771]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 96-NM-230-AD; Amendment 39-10658; AD 98-15-07]
RIN 2120-AA64
Airworthiness Directives; Dassault Model Mystere-Falcon 50 Series
Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD),
applicable to certain Dassault Model Mystere-Falcon 50 series
airplanes, that requires installation of a reinforcement fitting at the
junction of the baggage floor and frame 35 on both the left- and right-
hand sides of the airplane. This amendment is prompted by issuance of
mandatory continuing airworthiness information by a foreign civil
airworthiness authority. The actions specified by this AD are intended
to prevent fatigue cracking in the subject area, which could result in
reduced structural integrity of the airframe.
DATES: Effective August 20, 1998.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of August 20, 1998.
ADDRESSES: The service information referenced in this AD may be
obtained from Dassault Falcon Jet, P.O. Box 2000, South Hackensack, New
Jersey 07606. This information may be examined at the Federal Aviation
Administration (FAA), Transport Airplane Directorate, Rules Docket,
1601 Lind Avenue, SW., Renton, Washington; or at the Office of the
Federal Register, 800 North Capitol Street, NW., suite 700, Washington,
DC.
FOR FURTHER INFORMATION CONTACT: Norman B. Martenson, Manager,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-2110; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to include an airworthiness
directive (AD) that is applicable to certain Dassault Model Mystere-
Falcon 50 series airplanes was published in the Federal Register on
August 5, 1997 (62 FR 42077). That action proposed to require
installation of a reinforcement fitting at the junction of the baggage
floor and frame 35 on both the left- and right-hand sides of the
airplane.
Comments
Interested persons have been afforded an opportunity to participate
in the making of this amendment. Due consideration has been given to
the comments received.
Request To Revise Cost Impact Information
One commenter requests that the FAA's estimate of the number of
airplanes of U.S. registry affected by the proposed AD be revised from
26 to 18 in the cost impact paragraph of the AD. The commenter states
that only 18 airplanes of U.S. registry would be affected by the
proposed AD because
[[Page 38288]]
Avions Marcel Dassault-Breguet Aviation (AMD-BA) Service Bulletin F50-
122 (F50-53-2), dated June 25, 1986, has already been accomplished for
the remaining airplanes. Based on this additional information received
since issuance of the proposed AD, the FAA concurs with the commenter's
request, and has revised the cost impact information, below, to reflect
this information.
One commenter identifies a typographical error in the Explanation
of Relevant Service Information section of the proposed AD. The date of
AMD-BA Service Bulletin F50-163 (F50-00-8), dated April 10, 1986, was
incorrectly specified as April 10, 1996. The FAA acknowledges that an
inadvertent typographical error appeared in the proposed AD, and that
the correct date of the service bulletin is April 10, 1986. However,
since the Explanation of Relevant Service Information section of the
preamble to the proposed AD is not restated in the final rule, no
change to the final rule is necessary.
Explanation of Changes Made to This Final Rule
In the proposal, the FAA inadvertently omitted the word `cycle' in
references to the number of flight cycles specified for appropriate
compliance times for accomplishment of the requirements of this AD. The
final rule has been revised throughout paragraph (a) to specify
``flight cycles'' for those compliance times.
Conclusion
After careful review of the available data, including the comments
noted above, the FAA has determined that air safety and the public
interest require the adoption of the rule with the changes previously
described. The FAA has determined that these changes will neither
increase the economic burden on any operator nor increase the scope of
the AD.
Cost Impact
The FAA estimates that 26 Dassault Model Mystere-Falcon 50 series
airplanes of U.S. registry will be affected by this AD, that it will
take approximately 50 work hours per airplane to accomplish the
required installation, and that the average labor rate is $60 per work
hour. Required parts will cost approximately $7,000 per airplane. Based
on these figures, the cost impact of the installation required by this
AD on U.S. operators is estimated to be $260,000, or $10,000 per
airplane.
The cost impact figure discussed above is based on assumptions that
no operator has yet accomplished any of the requirements of this AD
action, and that no operator would accomplish those actions in the
future if this AD were not adopted. However, the FAA has been advised
that the installation required by this AD has already been accomplished
on 8 airplanes; therefore, only 18 airplanes of U.S. registry are
affected. Therefore, the future economic cost impact of the
installation required by this AD on U.S. operators is now only
$180,000.
Regulatory Impact
The regulations adopted herein will 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 levels of government. Therefore, in
accordance with Executive Order 12612, it is determined that this final
rule does not have sufficient federalism implications to warrant the
preparation of a Federalism Assessment.
For the reasons discussed above, I certify that this action (1) is
not a ``significant regulatory action'' under Executive Order 12866;
(2) is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and (3) 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. A final evaluation has been prepared for this action
and it is contained in the Rules Docket. A copy of it may be obtained
from the Rules Docket at the location provided under the caption
ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration amends part 39 of
the Federal Aviation Regulations (14 CFR part 39) as follows:
PART 39--AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
2. Section 39.13 is amended by adding the following new
airworthiness directive:
98-15-07 Dassault Aviation: Amendment 39-10658. Docket 96-NM-230-
AD.
Applicability: Model Mystere-Falcon 50 series airplanes, serial
numbers 1 through 49 inclusive, certificated in any category.
Note 1: This AD applies to each airplane identified in the
preceding applicability provision, regardless of whether it has been
modified, altered, or repaired in the area subject to the
requirements of this AD. For airplanes that have been modified,
altered, or repaired so that the performance of the requirements of
this AD is affected, the owner/operator must request approval for an
alternative method of compliance in accordance with paragraph (b) of
this AD. The request should include an assessment of the effect of
the modification, alteration, or repair on the unsafe condition
addressed by this AD; and, if the unsafe condition has not been
eliminated, the request should include specific proposed actions to
address it.
Compliance: Required as indicated, unless accomplished
previously.
To prevent fatigue cracking at the junction of the baggage floor
and frame 35, which could result in reduced structural integrity of
the airframe, accomplish the following:
(a) Install a reinforcement fitting at the junction of the
baggage floor and frame 35 on both the left- and right-hand sides of
the airplane, in accordance with Avions Marcel Dassault-Breguet
Aviation (AMD-BA) Service Bulletin F50-122 (F50-53-2), dated June
25, 1986, at the time specified in paragraph (a)(1) or (a)(2) of
this AD, as applicable.
(1) For airplanes on which AMD-BA Service Bulletin F50-163 (F50-
00-8) has been incorporated as of the effective date of this AD:
Prior to the accumulation of 10,000 total flight cycles or within 6
months after the effective date of this AD, whichever occurs later.
(2) For airplanes on which AMD-BA Service Bulletin F50-163 (F50-
00-8) has not been incorporated as of the effective date of this AD:
Perform the requirements of paragraph (a) of this AD at the time
specified in either paragraph (a)(2)(i) or (a)(2)(ii) of this AD, as
applicable.
(i) Except for those airplanes identified in paragraph
(a)(2)(ii), prior to the accumulation of 14,000 total flight cycles
or within 6 months after the effective date of this AD, whichever
occurs later.
(ii) If incorporation of AMD-BA Service Bulletin F50-163 (F50-
00-8) is accomplished at or after the accumulation of 10,000 total
flight cycles and prior to the accumulation of 14,000 total flight
cycles: Perform the requirements of paragraph (a) of this AD
concurrently with the incorporation of AMD-BA Service Bulletin F50-
163 (F50-00-8).
(b) An alternative method of compliance or adjustment of the
compliance time that provides an acceptable level of safety may be
used if approved by the Manager, International Branch, ANM-116, FAA,
Transport Airplane Directorate. Operators
[[Page 38289]]
shall submit their requests through an appropriate FAA Principal
Maintenance Inspector, who may add comments and then send it to the
Manager, International Branch, ANM-116.
Note 2: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the International Branch, ANM-116.
(c) Special flight permits may be issued in accordance with
sections 21.197 and 21.199 of the Federal Aviation Regulations (14
CFR 21.197 and 21.199) to operate the airplane to a location where
the requirements of this AD can be accomplished.
(d) The installation shall be done in accordance with Avions
Marcel Dassault-Breguet Aviation (AMD-BA) Service Bulletin F50-122
(F50-53-2), dated June 25, 1986. This incorporation by reference was
approved by the Director of the Federal Register in accordance with
5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from
Dassault Falcon Jet, P.O. Box 2000, South Hackensack, New Jersey
07606. Copies may be inspected at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the
Office of the Federal Register, 800 North Capitol Street, NW., suite
700, Washington, DC.
Note 3: The subject of this AD is addressed in French
airworthiness directive 86-74-5(B), dated June 25, 1986.
(e) This amendment becomes effective on August 20, 1998.
Issued in Renton, Washington, on July 8, 1998.
S.R. Miller,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 98-18771 Filed 7-15-98; 8:45 am]
BILLING CODE 4910-13-U
