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[Federal Register: September 23, 2010 (Volume 75, Number 184)]
[Rules and Regulations]               
[Page 57844-57846]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr23se10-3]                         

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2010-0555; Directorate Identifier 2010-NM-053-AD; 
Amendment 39-16438; AD 2010-20-04]
RIN 2120-AA64

 
Airworthiness Directives; Gulfstream Aerospace LP (Type 
Certificate Previously Held by Israel Aircraft Industries, Ltd.) Model 
Galaxy and Gulfstream 200 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:

    Extension of airbrakes above 360 KIAS [knots indicated air 
speed]/0.79 Mi [Mach indicated] results in aerodynamic 
driven vibration of the airbrake which, if not limited per Revision 
14 to the AFM [airplane flight manual], can lead to high cycle 
fatigue failure of the airbrake in-board hinge.

The unsafe condition is high cycle fatigue of the airbrake in-board 
hinge, which can result in loss of the airbrake, which in turn can lead 
to reduced controllability of the airplane. We are issuing this AD to 
require actions to correct the unsafe condition on these products.

DATES: This AD becomes effective October 28, 2010.

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: Mike Borfitz, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
227-2677; 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 June 25, 2010 (75 FR 
36296). That NPRM proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    Extension of airbrakes above 360 KIAS [knots indicated air 
speed]/0.79 Mi [Mach indicated] results in aerodynamic 
driven vibration of the airbrake which, if not limited per Revision 
14 to the AFM [airplane flight manual], can lead to high cycle 
fatigue failure of the airbrake in-board hinge.

The unsafe condition is high cycle fatigue of the airbrake in-board 
hinge, which can result in loss of the airbrake, which in turn can lead 
to reduced controllability of the airplane. The required action 
includes revising the Limitations section of the Gulfstream 200 
Airplane Flight Manual to prohibit deploying the air brakes above the 
stated speed. 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

[[Page 57845]]

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 90 products of U.S. 
registry. We also estimate that it will take about 1 work-hour per 
product to comply with the basic requirements of this AD. The average 
labor rate is $85 per work-hour. Based on these figures, we estimate 
the cost of this AD to the U.S. operators to be $7,650, or $85 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, 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 AD:

2010-20-04 Gulfstream Aerospace LP (Type Certificate Previously Held 
by Israel Aircraft Industries, Ltd.): Amendment 39-16438. Docket No. 
FAA-2010-0555; Directorate Identifier 2010-NM-053-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective October 
28, 2010.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Gulfstream Aerospace LP (Type Certificate 
previously held by Israel Aircraft Industries, Ltd.) Model Galaxy 
and Gulfstream 200 airplanes, all serial numbers, certificated in 
any category.

Subject

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

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:

    Extension of airbrakes above 360 KIAS [knots indicated air 
speed]/0.79 Mi [Mach indicated] results in aerodynamic 
driven vibration of the airbrake which, if not limited per Revision 
14 to the AFM [airplane flight manual], can lead to high cycle 
fatigue failure of the airbrake in-board hinge.

The unsafe condition is high cycle fatigue of the airbrake in-board 
hinge, which can result in loss of the airbrake, which in turn can 
lead to reduced controllability of the airplane.

Compliance

    (f) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Actions

    (g) Within 60 days after the effective date of this AD: Revise 
the Limitations section of the Gulfstream 200 AFM to include the 
following statement. This may be done by inserting a copy of this AD 
into the AFM.

``MAXIMUM AIR BRAKES OPERATION/EXTENDED SPEED

360 KIAS/0.79 Mi

NOTE

    During emergency, air brakes may be used at speeds above 0.79 
Mi.''

    Note 1: When a statement identical to that in paragraph (g) of 
this AD has been included in the general revisions of the AFM, the 
general revisions may be inserted into the AFM, and the copy of this 
AD may be removed from the AFM.

    Note 2: The Gulfstream 200 AFM applies to both the Model Galaxy 
and Gulfstream 200 airplanes.

FAA AD Differences

    Note 3: This AD differs from the MCAI and/or service information 
as follows:
    No differences.

Other FAA AD Provisions

    (h) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Branch, ANM-116, Transport Airplane Directorate, 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: Mike 
Borfitz, Aerospace Engineer, International Branch, ANM-116, 
Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, 
Washington 98057-3356; telephone (425) 227-2677; fax (425) 227-1149. 
Before using any approved AMOC on any airplane to which the AMOC 
applies, notify your principal maintenance inspector (PMI) or 
principal avionics inspector (PAI), as appropriate, or lacking a 
principal inspector, your local Flight Standards District Office.

[[Page 57846]]

The AMOC approval letter must specifically reference this AD.
    (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 (44 
U.S.C. 3501 et seq.), the Office of
    Management and Budget (OMB) has approved the information 
collection requirements and has assigned OMB Control Number 2120-
0056.

Related Information

    (i) Refer to MCAI Israeli Airworthiness Directive 01-10-01-07R1, 
dated January 20, 2010, for related information.

Material Incorporated by Reference

    (j) None.

    Issued in Renton, Washington, on September 10, 2010.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2010-23741 Filed 9-22-10; 8:45 am]
BILLING CODE 4910-13-P
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