Airworthiness Directives; Israel Aircraft Industries, Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes

[Federal Register Volume 69, Number 131 (Friday, July 9, 2004)]
[Rules and Regulations]
[Pages 41411-41413]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-15510]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2003-NM-37-AD; Amendment 39-13723; AD 2004-14-14]
RIN 2120-AA64


Airworthiness Directives; Israel Aircraft Industries, Ltd., Model 
1121, 1121A, 1121B, 1123, 1124, and 1124A 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 all Israel Aircraft Industries, Ltd., Model 1121, 1121A, 
1121B, 1123, 1124, and 1124A series airplanes, that requires a one-time 
inspection to detect cracking and other discrepancies of both sides of 
the rudder skins and ribs, forward to aft on each spar, to detect 
cracks below the skin surface; and corrective action if necessary. This 
action is necessary to detect and correct cracking of the skins of the 
rudder assembly, which could result in reduced structural capability of 
the rudder and reduced controllability of the airplane. This action is 
intended to address the identified unsafe condition.

DATES: Effective August 13, 2004.
    The incorporation by reference of certain publications listed in 
the regulations is approved by the Director of the Federal Register as 
of August 13, 2004.

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/

[[Page 41412]]

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) to include an airworthiness 
directive (AD) that is applicable to all Israel Aircraft Industries, 
Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A series airplanes 
was published in the Federal Register on May 7, 2004 (69 FR 25517). 
That action proposed to require a one-time inspection to detect 
cracking and other discrepancies of both sides of the rudder skins and 
ribs, forward to aft on each spar, to detect cracks below the skin 
surface; and corrective action if necessary.

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.

Cost Impact

    This AD will affect about 300 airplanes of U.S. registry. It will 
take about 3 work hours per airplane to do the required actions, at an 
average labor rate of $65 per work hour. Based on these figures, the 
cost impact of the AD on U.S. operators is estimated to be $58,500, or 
$195 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. 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 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 adding the following new airworthiness 
directive:

2004-14-14 Israel Aircraft Industries, LTD: Amendment 39-13723. 
Docket 2003-NM-37-AD.

    Applicability: All Model 1121, 1121A, 1121B, 1123, 1124, and 
1124A series airplanes; certificated in any category.
    Compliance: Required as indicated, unless accomplished 
previously.
    To detect and correct cracking of the skins of the rudder 
assembly, which could result in reduced structural capability of the 
rudder and reduced controllability of the airplane, accomplish the 
following:

Inspections

    (a) Within 50 flight hours after the effective date of this AD, 
do detailed and x-ray inspections to detect discrepancies (including 
cracking, loose rivets, and distorted rivet heads) of both sides of 
the rudder skins and ribs, forward to aft on each spar, in 
accordance with the applicable service bulletin identified in Table 
1 of this AD. Although the service bulletin referenced in this AD 
specifies to submit certain information to the manufacturer, this AD 
does not include such a requirement.

                 Table 1.--Service Information Reference
------------------------------------------------------------------------
                 For--                     Inspect in accordance with--
------------------------------------------------------------------------
Model 1121, 1121A, and 1121B series      1121 Commodore Jet (Israel
 airplanes.                               Aircraft Industries) Service
                                          Bulletin 1121-55-030, Revision
                                          1, dated June 23, 2003.
Model 1123 series airplanes............  1123--Westwind (Israel Aircraft
                                          Industries) Service Bulletin
                                          1123-55-056, Revision 1, dated
                                          June 23, 2003.
Model 1124 and 1124A series airplanes..  1124--Westwind (Israel Aircraft
                                          Industries) Service Bulletin
                                          1124-55-150, Revision 1, dated
                                          June 23, 2003.
------------------------------------------------------------------------


    Note 1: For the purposes of this AD, a detailed inspection is 
defined as: ``An intensive visual examination of a specific 
structural area, system, installation, or assembly to detect damage, 
failure, or irregularity. Available lighting is normally 
supplemented with a direct source of good lighting at intensity 
deemed appropriate by the inspector. Inspection aids such as mirror, 
magnifying lenses, etc., may be used. Surface cleaning and elaborate 
access procedures may be required.''

Corrective Action

    (b) If any discrepancy is found during any inspection required 
by paragraph (a) of this AD: Before further flight, repair it in 
accordance with a method approved by either the Manager, 
International Branch, ANM-116, FAA, Transport Airplane Directorate; 
or the Civil Aviation Administration of Israel (CAAI) (or its 
delegated agent).

Part Installation

    (c) As of the effective date of this AD, no person may install a 
rudder on any airplane,

[[Page 41413]]

unless the actions required by this AD have been accomplished.

Alternative Methods of Compliance

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

Incorporation by Reference

    (e) Unless otherwise specified in this AD, the actions must be 
done in accordance with the applicable service bulletin listed in 
Table 2 of this AD.

          Table 2.--Service Bulletins Incorporated by Reference
------------------------------------------------------------------------
       Service bulletin          Revision level             Date
------------------------------------------------------------------------
1121--Commodore Jet (Israel                    1   June 23, 2003.
 Aircraft Industries) Service
 Bulletin 1121-55-030.
1123--Westwind (Israel                         1   June 23, 2003
 Aircraft Industries) Service
 Bulletin 1123-55-056.
1124--Westwind (Israel                         1   June 23, 2003
 Aircraft Industries) Service
 Bulletin 1124-55-150.
------------------------------------------------------------------------

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 Gulfstream Aerospace Corporation, 
P.O. Box 2206, Mail Station D25, 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 2: The subject of this AD is addressed in Israeli 
airworthiness directive 55-02-12-04R1, dated December 10, 2003.

Effective Date

    (f) This amendment becomes effective on August 13, 2004.

    Issued in Renton, Washington, on June 30, 2004.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 04-15510 Filed 7-8-04; 8:45 am]
BILLING CODE 4910-13-P

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