[Federal Register: November 20, 2008 (Volume 73, Number 225)]
[Rules and Regulations]
[Page 70265-70267]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr20no08-6]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0887; Directorate Identifier 2007-NM-336-AD;
Amendment 39-15735; AD 2008-23-14]
RIN 2120-AA64
Airworthiness Directives; BAE Systems (Operations) Limited Model
BAe 146 and Avro 146-RJ Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This AD results from mandatory continuing
airworthiness information (MCAI) originated by an aviation authority of
another country to identify and correct an unsafe condition on an
aviation product. The MCAI describes the unsafe condition as:
During inspection of undercarriage main beam sidestays, bolts
attaching the undercarriage main beam sidestay to frame 29 were
found with the heads of the bolts sheared off. Loose bolt assemblies
were also found.
If sheared or loose bolts are not detected and replaced, a
possible consequence is the collapse of the main landing gear.
* * * * *
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective December 26, 2008.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 26,
2008.
ADDRESSES: You may examine the AD docket on the Internet at http://
www.regulations.gov or in person at the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
227-1175; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on August 21, 2008 (73
FR 49364). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
During inspection of undercarriage main beam sidestays, bolts
attaching the undercarriage main beam sidestay to frame 29 were
found with the heads of the bolts sheared off. Loose bolt assemblies
were also found.
If sheared or loose bolts are not detected and replaced, a
possible consequence is the collapse of the main landing gear.
For the reasons described above, this Airworthiness Directive
(AD) requires a one-time [rotating eddy current] inspection of the
bolt bores and bore dimensions and the installation of replacement
bolts, as necessary.
Corrective actions include contacting BAE Systems (Operations) Limited
for
[[Page 70266]]
repair instructions and repair, if necessary. You may obtain further
information by examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD as proposed.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have required different actions in this AD from those
in the MCAI in order to follow our FAA policies. Any such differences
are highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect about 1 product of U.S.
registry. We also estimate that it will take about 24 work-hours per
product to comply with the basic requirements of this AD. The average
labor rate is $80 per work-hour. Required parts will cost about $1,000
per product. Where the service information lists required parts costs
that are covered under warranty, we have assumed that there will be no
charge for these parts. As we do not control warranty coverage for
affected parties, some parties may incur costs higher than estimated
here. Based on these figures, we estimate the cost of this AD to the
U.S. operators to be $2,920, or $2,920 per product.
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.
Regulatory Findings
We determined that this AD will not have federalism implications
under Executive Order 13132. This AD will 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 AD:
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); 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.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket.
Examining the AD Docket
You may examine the AD docket on the Internet at http://
www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains the 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 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]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2008-23-14 BAE Systems (Operations) Limited (Formerly British
Aerospace Regional Aircraft): Amendment 39-15735. Docket No. FAA-
2008-0887; Directorate Identifier 2007-NM-336-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective December
26, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to all BAE Systems (Operations) Limited
Model BAe 146-100A, -200A, and -300A series airplanes; and Model
Avro 146-RJ70A, 146-RJ85A, and 146-RJ100A airplanes; certificated in
any category.
Subject
(d) Air Transport Association (ATA) of America Code 53:
Fuselage.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
During inspection of undercarriage main beam sidestays, bolts
attaching the undercarriage main beam sidestay to frame 29 were
found with the heads of the bolts sheared off. Loose bolt assemblies
were also found.
If sheared or loose bolts are not detected and replaced, a
possible consequence is the collapse of the main landing gear.
For the reasons described above, this Airworthiness Directive
(AD) requires a one-time [rotating eddy current] inspection of the
bolt bores and bore dimensions and the installation of replacement
bolts, as necessary.
Corrective actions include contacting BAE Systems (Operations)
Limited for repair instructions and repair, if necessary.
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 4,000 flight cycles or 5 years, whichever occurs
first after the effective date of this AD, perform the inspections
to detect defects (including sheared or loose bolts) and do the bolt
replacements in accordance with the instructions of paragraphs
2.C.(1) through 2.C.(3), and paragraphs 2.D.(1) through 2.D.(3), of
the Accomplishment Instructions of BAE Systems (Operations) Limited
Inspection Service Bulletin ISB.53-194, dated January 10, 2007,
except as required by paragraphs (f)(2), (f)(3), and (f)(4) of this
AD.
(2) If any defect is found during the inspection specified in
paragraph (f)(1) of this AD, before further flight, replace the
affected bolts in accordance with the Accomplishment Instructions of
BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-
194, dated January 10, 2007, except as required by paragraphs (f)(3)
and (f)(4) of this AD.
[[Page 70267]]
(3) For airplanes on which replacement parts are not available
during the replacement specified in paragraph (f)(2) of this AD, do
the actions in paragraphs (f)(3)(i) and (f)(3)(ii) of this AD in
accordance with the Accomplishment Instructions of BAE Systems
(Operations) Limited Inspection Service Bulletin ISB.53-194, dated
January 10, 2007.
(i) Before further flight, temporarily reinstall removed
oversized bolts, provided the bolts are serviceable.
(ii) Within 2,000 flight cycles after doing the inspection
required by paragraph (f)(1) of this AD, replace all temporary
oversized bolts that were installed in accordance with paragraph
(f)(3)(i) of this AD.
(4) Where BAE Systems (Operations) Limited Inspection Service
Bulletin ISB.53-194, dated January 10, 2007, specifies to contact
BAE Systems (Operations) Limited if any defect is found in the
second oversize fastener bore, before further flight, contact BAE
Systems (Operations) Limited for repair instructions and do the
repair.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service information
as follows: No differences.
Other FAA AD Provisions
(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, FAA, has the authority to approve AMOCs for
this AD, if requested using the procedures found in 14 CFR 39.19.
Send information to ATTN: Todd Thompson, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone
(425) 227-1175; fax (425) 227-1149. Before using any approved AMOC
on any airplane to which the AMOC applies, notify your appropriate
principal inspector (PI) in the FAA Flight Standards District Office
(FSDO), or lacking a PI, your local FSDO.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(3) Reporting Requirements: For any reporting requirement in
this AD, under the provisions of the Paperwork Reduction Act, the
Office of Management and Budget (OMB) has approved the information
collection requirements and has assigned OMB Control Number 2120-
0056.
Related Information
(h) Refer to MCAI European Aviation Safety Agency Airworthiness
Directive 2007-0277, dated November 5, 2007; and BAE Systems
(Operations) Limited Inspection Service Bulletin ISB.53-194, dated
January 10, 2007; for related information.
Material Incorporated by Reference
(i) You must use BAE Systems (Operations) Limited Inspection
Service Bulletin ISB.53-194, dated January 10, 2007, to do the
actions required by this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact BAE
Systems Regional Aircraft, 13850 McLearen Road, Herndon, Virginia
20171; telephone 703-736-1080; e-mail raebusiness@baesystems.com;
Internet http://www.baesystems.com/Businesses/RegionalAircraft/
index.htm.
(3) You may review copies at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the
National Archives and Records Administration (NARA). For information
on the availability of this material at NARA, call (202) 741-6030,
or go to: http://www.archives.gov/federal_register/code_of_
federal_regulations/ibr_locations.html.
Issued in Renton, Washington, on November 4, 2008.
Stephen P. Boyd,
Assistant Manager, Transport Airplane Directorate, Aircraft
Certification Service.
[FR Doc. E8-26918 Filed 11-19-08; 8:45 am]
BILLING CODE 4910-13-P