Airworthiness Directives; BAE Systems (Operations) Limited (Jetstream) Model 4101 Airplanes

[Federal Register Volume 70, Number 119 (Wednesday, June 22, 2005)]
[Rules and Regulations]
[Pages 35996-35997]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-12150]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-20865; Directorate Identifier 2003-NM-103-AD; 
Amendment 39-14145; AD 2005-13-08]
RIN 2120-AA64


Airworthiness Directives; BAE Systems (Operations) Limited 
(Jetstream) Model 4101 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
BAE Systems (Operations) Limited (Jetstream) Model 4101 airplanes. This 
AD requires the overhaul of certain auxiliary components installed on 
the main landing gear (MLG) and nose landing gear (NLG). This AD is 
prompted by manufacturer determination that overhaul limits need to be 
imposed for certain auxiliary components of the MLG and NLG. Components 
that exceed the established overhaul limits could fail due to fatigue, 
wear, and age. We are issuing this AD to prevent failure of the MLG or 
NLG, and consequent damage to the airplane and injury to flightcrew and 
passengers.

DATES: This AD becomes effective July 27, 2005.
    The incorporation by reference of a certain publication listed in 
the AD is approved by the Director of the Federal Register as of July 
27, 2005.

ADDRESSES: For service information identified in this AD, contact 
British Aerospace Regional Aircraft American Support, 13850 Mclearen 
Road, Herndon, Virginia 20171.
    Docket: The AD docket contains the proposed AD, comments, and any 
final disposition. You can examine the AD docket on the Internet at 
http://dms.dot.gov, or in person at the Docket Management Facility 
office between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the U.S. 
Department of Transportation, 400 Seventh Street SW., room PL-401, 
Washington, DC. This docket number is FAA-2005-20865; the directorate 
identifier for this docket is 2003-NM-103-AD.

FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, 
International Branch, ANM-116, FAA, Transport Airplane Directorate, 
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 
227-1175; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 
with an AD for all BAE Systems (Operations) Limited (Jetstream) Model 
4101 airplanes. That action, published in the Federal Register on April 
6, 2005 (70 FR 17373), proposed to require the overhaul of certain 
auxiliary components installed on the main landing gear (MLG) and nose 
landing gear (NLG).

Comments

    We provided the public the opportunity to participate in the 
development of this AD. No comments have been submitted on the proposed 
AD or on the determination of the cost to the public.

Conclusion

    We have carefully reviewed the available data and determined that 
air safety and the public interest require adopting the AD as proposed.

Costs of Compliance

    This AD will affect about 57 airplanes of U.S. registry. The 
following table, using an average labor rate of $65 per hour, provides 
the estimated costs for U.S. operators to comply with this AD.

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                          Cost per
                         Replacement                           Work hours   Parts cost    airplane    Fleet cost
----------------------------------------------------------------------------------------------------------------
MLG shock strut (left and right)............................            6     *$25,000      $50,390   $2,872,230
NLG shock strut.............................................            3       30,000       30,195    1,721,115
MLG retract actuator (left and right).......................            6       *6,300       12,990      740,430
NLG retract actuator........................................            3        4,100        4,295      244,815
MLG drag brace/actuator (left and right)....................            6       *9,500       19,390    1,105,230
MLG uplock/actuator (left and right)........................            6       *5,600       11,590      660,630
NLG downlock/actuator.......................................            3        3,200        3,395      193,515
NLG uplock/actuator.........................................            3        2,800        2,995      170,715
Steering selector valve.....................................            3        6,800        6,995      398,715
    Total...................................................           39      139,700      142,235   8,107,395
----------------------------------------------------------------------------------------------------------------
*Per side.

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 have 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

[[Page 35997]]

responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    (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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD. See the ADDRESSES section for a location to 
examine the regulatory evaluation.

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

0
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 airworthiness 
directive (AD):

2005-13-08 BAE Systems (Operations) Limited (Formerly British 
Aerospace Regional Aircraft): Amendment 39-14145. Directorate 
Identifier 2003-NM-103-AD.

Effective Date

    (a) This AD becomes effective July 27, 2005.

Affected ADs

    (b) None.
    Applicability: (c) This AD applies to all BAE Systems 
(Operations) Limited Model Jetstream 4101 airplanes, certificated in 
any category.

Unsafe Condition

    (d) This AD was prompted by manufacturer determination that 
overhaul limits need to be imposed for certain auxiliary components 
of the main landing gear (MLG) and nose landing gear (NLG). 
Components that exceed the established overhaul limits could fail 
due to fatigue, wear, and age. We are issuing this AD to prevent 
failure of the MLG or NLG, and consequent damage to the airplane and 
injury to flightcrew and passengers.
    Compliance: (e) You are responsible for having the actions 
required by this AD performed within the compliance times specified, 
unless the actions have already been done.

Overhaul of Landing Gear

    (f) Within 18 months after the effective date of this AD, 
overhaul auxiliary components installed on the MLG and NLG, in 
accordance with the Accomplishment Instructions of BAE Systems 
(Operations) Limited Service Bulletin J41-32-081, dated August 6, 
2002, except as provided by paragraph (g) of this AD; and thereafter 
as specified in the ``Overhaul Period'' column of Table 1 of the 
Accomplishment Instructions of the service bulletin.

    Note 1: BAE Systems (Operations) Limited Service Bulletin J41-
32-081 refers to BAE Systems (Operations) Limited Service Bulletin 
J41-05-001, Revision 2, dated March 15, 2002, as an additional 
source of service information for calculating estimated usage of 
affected auxiliary components.

No Reporting Requirement

    (g) Although the service bulletin referenced in this AD 
specifies to submit certain information to the manufacturer, this AD 
does not include that requirement.

Alternative Methods of Compliance (AMOCs)

    (h) The Manager, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, has the authority to approve AMOCs for 
this AD, if requested in accordance with the procedures found in 14 
CFR 39.19.

Related Information

    (i) British airworthiness directive 006-08-2002 also addresses 
the subject of this AD.

Material Incorporated by Reference

    (j) You must use BAE Systems (Operations) Limited Service 
Bulletin J41-32-081, dated August 6, 2002, to perform the actions 
that are required by this AD, unless the AD specifies otherwise. The 
Director of the Federal Register approves the incorporation by 
reference of this document in accordance with 5 U.S.C. 552(a) and 1 
CFR part 51. To get copies of the service information, contact 
British Aerospace Regional Aircraft American Support, 13850 Mclearen 
Road, Herndon, Virginia 20171. To view the AD docket, go to the 
Docket Management Facility, U.S. Department of Transportation, 400 
Seventh Street SW., room PL-401, Nassif Building, Washington, DC.
    To review copies of the service information, go to the National 
Archives and Records Administration (NARA). For information on the 
availability of this material at the 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 June 10, 2005.
Michael J. Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-12150 Filed 6-21-05; 8:45 am]
BILLING CODE 4910-13-P

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