Airworthiness Directives; Gulfstream Aerospace LP Model 1125 Westwind Astra Series Airplanes

[Federal Register Volume 69, Number 91 (Tuesday, May 11, 2004)]
[Rules and Regulations]
[Pages 26005-26006]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-10249]



[[Page 26005]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2001-NM-402-AD; Amendment 39-13609; AD 2004-09-20]
RIN 2120-AA64


Airworthiness Directives; Gulfstream Aerospace LP Model 1125 
Westwind Astra Series Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule.

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SUMMARY: This amendment supersedes an existing airworthiness directive 
(AD), applicable to certain Gulfstream Aerospace LP Model 1125 Westwind 
Astra series airplanes, that currently requires revising the airplane 
flight manual (AFM) to provide the flight crew with operational 
guidance under certain failure conditions and a limitation not to 
engage the long-range navigation system during takeoff, approach, or 
landing. This amendment requires replacing the low-voltage sensing 
relays with higher-accuracy relays, and replacing the circuit breakers 
of the directional gyros with circuit breakers with lower amps. After 
the replacements have been accomplished, this amendment also requires 
inserting a new temporary revision in the Limitations section of the 
AFM, or removing the revision to the AFM required by the previous AD. 
The actions specified by this AD are intended to prevent the loss of 
primary attitude and directional gyros, which relate position 
information to the flight crew. This action is intended to address the 
identified unsafe condition.

DATES: Effective June 15, 2004.
    The incorporation by reference of a certain publication, as listed 
in the regulations is approved by the Director of the Federal Register 
as of June 15, 2004.
    The incorporation by reference of Temporary Revision No. 9, dated 
May 21, 2000, to the Israel Aircraft Industries, Ltd., Astra Airplane 
Flight Manual, as listed in the regulations, was approved previously by 
the Director of the Federal Register as of September 29, 2000 (65 FR 
55450, September 14, 2000).

ADDRESSES: The service information referenced in this AD may be 
obtained from Gulfstream Aerospace Corporation, P.O. Box 2206, Mail 
Station D25, Savannah, Georgia 31402. 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 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.

FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, 
International Branch, ANM-116, FAA, Transport Airplane Directorate, 
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 
227-2125; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations (14 CFR part 39) by superseding AD 2000-18-11, 
amendment 39-11896 (65 FR 55450, September 14, 2000), which is 
applicable to certain Gulfstream Aerospace LP (Formerly Israel Aircraft 
Industries, Ltd.) Model 1125 Westwind Astra series airplanes, was 
published in the Federal Register on February 9, 2004 (69 FR 5936). The 
action proposed to require replacing the low-voltage sensing relays 
with higher-accuracy relays, and replacing the circuit breakers of the 
directional gyros with circuit breakers with lower amps. After the 
replacements have been accomplished, the action also proposed to 
require inserting a new temporary revision (TR) in the Limitations 
section of the AFM, or removing the revision to the AFM required by the 
previous AD (AD 2000-18-11).

Comments

    Interested persons have been afforded an opportunity to participate 
in the making of this amendment. No comments were submitted in response 
to the proposal or the FAA's determination of the cost to the public.

Clarification of Document Citations in This Final Rule

    Operators should note that the manufacturer of the subject 
airplanes, previously Israel Aircraft Industries, Ltd., is now 
Gulfstream Aerospace LP. In order to meet the Office of the Federal 
Register's (OFR) guidelines for materials incorporated by reference, 
document citations must include the name of the manufacturer. 
Therefore, we have revised certain document citations in this final 
rule to include the manufacturer's current name. However, we have not 
revised the citation for Temporary Revision No. 9, which was previously 
incorporated by reference in AD 2000-18-11. The OFR guidelines require 
documents previously incorporated by reference to be cited exactly as 
they were originally approved.

Conclusion

    The FAA has determined that air safety and the public interest 
require the adoption of the rule as proposed.

Cost Impact

    There are approximately 29 airplanes of U.S. registry that will be 
affected by this AD.
    The actions that are currently required by AD 2000-18-11 take 
approximately 1 work hour per airplane to accomplish, at an average 
labor rate of $65 per work hour. Based on these figures, the cost 
impact of the previously required actions on U.S. operators is 
estimated to be $1,885, or $65 per airplane.
    The new actions that are required by this new AD will take 
approximately 24 work hours per airplane to accomplish for the 
replacements, and approximately 1 work hour per airplane to accomplish 
for the revision of the AFM. The average labor rate is $65 per work 
hour. Required parts will cost approximately $1,030 per airplane. Based 
on these figures, the cost impact of the new requirements of this AD on 
U.S. operators is estimated to be $76,995, or $2,655 per airplane.
    The cost impact figures discussed above are 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. The cost impact figures discussed 
in AD rulemaking actions represent only the time necessary to perform 
the specific actions actually required by the AD. These figures 
typically do not include incidental costs, such as the time required to 
gain access and close up, planning time, or time necessitated by other 
administrative actions.

Regulatory Impact

    The regulations adopted herein 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. Therefore, it 
is determined that this final rule does not have federalism 
implications under Executive Order 13132.
    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

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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

0
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

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. Section 39.13 is amended by removing amendment 39-11896 (65 FR 
55450, September 14, 2000), and by adding a new airworthiness directive 
(AD), amendment 39-13609, to read as follows:

2004-09-20 Gulfstream Aerospace LP (Formerly Israel Aircraft 
Industries, Ltd.): Docket 2001-NM-402-AD: Amendment 39-13609. 
Supersedes AD 2000-18-11, Amendment 39-11896.

    Applicability: Model 1125 Westwind Astra series airplanes, 
certificated in any category; serial numbers 004 through 029 
inclusive, and 031 through 041 inclusive.
    Compliance: Required as indicated, unless accomplished 
previously.
    To prevent the loss of primary attitude and directional gyros, 
which relate position information to the flight crew, accomplish the 
following:

Restatement of the Requirements of AD 2000-18-11

AFM Revision

    (a) Within 10 days after September 29, 2000 (the effective date 
of AD 2000-18-11, amendment 39-11896), revise the Limitations and 
Abnormal Procedures Sections of the Israel Aircraft Industries, 
Ltd., Astra Airplane Flight Manual (AFM) by inserting a copy of 
Temporary Revision No. 9, dated May 21, 2000, into the AFM.

    Note 1: When the temporary revision required by paragraph (a) of 
this AD has been incorporated into the general revisions of the AFM, 
the general revisions may be inserted into the AFM, provided that 
the information contained in the general revisions is identical to 
that specified in the temporary revision.

New Requirements of This AD

Replacements

    (b) Within 50 flight hours after the effective date of this AD: 
Replace existing sensing relays with new higher-accuracy relays 
having new part number (P/N) 1350-X3042; and replace existing DIRECT 
GYRO 1 and 2 circuit breakers having P/N 7274-47-3 with new circuit 
breakers having new P/N 7274-47-0.5; in accordance with the 
Accomplishment Instructions of Astra (Gulfstream Aerospace 
Corporation) Alert Service Bulletin 1125-24A-246, dated September 
26, 2001.

New AFM Revision

    (c) Before further flight following the actions required by 
paragraph (b) of this AD: Remove Temporary Revision No. 9, dated May 
21, 2000, from the AFM; or revise the Limitations and Abnormal 
Procedures Sections of the Israel Aircraft Industries, Ltd. 
(Gulfstream Aerospace LP), Astra AFM by inserting a copy of 
Temporary Revision 13, dated October 31, 2001, into the AFM.

    Note 2: When the temporary revision required by paragraph (c) of 
this AD has been incorporated into the general revisions of the AFM, 
the general revisions may be inserted into the AFM, provided that 
the information contained in the general revisions is identical to 
that specified in the temporary revision.

No Reporting Requirement

    (d) Operators should note that, although the Accomplishment 
Instructions of the service bulletin referenced in paragraph (b) of 
this AD describe procedures for submitting a certificate of 
compliance to the manufacturer, this AD does not require those 
actions.

Alternative Methods of Compliance

    (e) In accordance with 14 CFR 39.19, the Manager, International 
Branch, ANM-116, FAA, Transport Airplane Directorate, is authorized 
to approve alternative methods of compliance (AMOCs) for this AD.

Incorporation by Reference

    (f) The actions shall be done in accordance with Astra 
(Gulfstream Aerospace Corporation) Alert Service Bulletin 1125-24A-
246, dated September 26, 2001; Temporary Revision No. 9, dated May 
21, 2000, to the Israel Aircraft Industries, Ltd., Astra Airplane 
Flight Manual; and Temporary Revision 13, dated October 31, 2001, to 
the Israel Industries, Ltd. (Gulfstream Aerospace LP), Astra 
Airplane Flight Manual; as applicable.
    (1) The incorporation by reference of Astra (Gulfstream 
Aerospace Corporation) Alert Service Bulletin 1125-24A-246, dated 
September 26, 2001; and Temporary Revision 13, dated October 31, 
2001, to the Israel Aircraft Industries, Ltd. (Gulfstream Aerospace 
LP) Astra Airplane Flight Manual; is approved by the Director of the 
Federal Register in accordance with 5 U.S.C. 522(1) and 1 CFR part 
51.
    (2) The incorporation by reference of Temporary Revision No. 9, 
dated May 21, 2000, to the Israel Aircraft Industries, Ltd., Astra 
Airplane Flight Manual, was approved previously by the Director of 
the Federal Register as of September 29, 2000 (65 FR 55450, 
September 14, 2000).
    (3) Copies may be obtained from Gulfstream Aerospace 
Corporation, P.O. Box 2206, Mail Station D-25, Savannah, Georgia 
31402. Copies may be inspected 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.

    Note 3: The subject of this AD is addressed in Israeli 
airworthiness directive 24-01-06-04, dated November 13, 2001.

Effective Date

    (g) This amendment becomes effective on June 15, 2004.

    Issued in Renton, Washington, on April 21, 2004.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 04-10249 Filed 5-10-04; 8:45 am]
BILLING CODE 4910-13-P

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