[Federal Register: November 30, 2004 (Volume 69, Number 229)]
[Rules and Regulations]
[Page 69505-69506]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr30no04-1]
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Rules and Regulations
Federal Register
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[[Page 69505]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2002-NM-182-AD; Amendment 39-13882; AD 2004-24-06]
RIN 2120-AA64
Airworthiness Directives; Saab Model SAAB SF340A and SAAB 340B
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 certain Saab Model SAAB SF340A and SAAB 340B series
airplanes. This AD requires replacement of the retract actuator bracket
attachment bolt (RABAB) of the main landing gear (MLG) with a new
RABAB; reidentification of the MLG shock strut; an inspection for
corrosion, fretting, or other damage of certain RABABs; and applicable
corrective actions. The actions specified by this AD are intended to
prevent failure of the RABAB, which could result in loosening of the
actuator bracket and consequent failure of the MLG to retract, with
considerable damage to other landing gear parts, including the MLG
trunnion fitting. This action is intended to address the identified
unsafe condition.
DATES: Effective January 4, 2005.
The incorporation by reference of a certain publication listed in
the regulations is approved by the Director of the Federal Register as
of January 4, 2005.
ADDRESSES: The service information referenced in this AD may be
obtained from Saab Aircraft AB, SAAB Aircraft Product Support, S-
581.88, Link[ouml]ping, Sweden. 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) to include an airworthiness
directive (AD) that is applicable to certain Saab Model SAAB SF340A and
SAAB 340B series airplanes was published as a supplemental notice of
proposed rulemaking (NPRM) in the Federal Register on September 28,
2004 (69 FR 57892). That action proposed to require replacement of the
retract actuator bracket attachment bolt (RABAB) of the main landing
gear (MLG) with a new RABAB; reidentification of the MLG shock strut;
an inspection for corrosion, fretting, or other damage of any RABAB;
and applicable corrective actions.
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.
Conclusion
The FAA has determined that air safety and the public interest
require the adoption of the rule as proposed.
Cost Impact
We estimate that approximately 281 airplanes of U.S. registry will
be affected by this AD, that it will take approximately 7 work hours
per airplane to accomplish the required actions, and that the average
labor rate is $65 per work hour. Required parts will be supplied at no
cost by the manufacturer. Based on these figures, the cost impact of
this AD on U.S. operators is estimated to be $127,855, or $455 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:
[[Page 69506]]
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:
2004-24-067 SAAB AIRCRAFT AB: Amendment 39-13882. Docket 2002-NM-
182-AD.
Applicability
Model SAAB SF340A series airplanes, serial numbers (S/Ns) 004
through 159 inclusive; and Model SAAB 340B series airplanes, S/Ns
160 through 459 inclusive; certificated in any category.
Compliance
Required as indicated, unless accomplished previously.
To prevent failure of the retract actuator bracket attachment
bolt (RABAB), which could result in loosening of the retract
actuator bracket and consequent failure of the main landing gear
(MLG) to retract, with considerable damage to other landing gear
parts, including the MLG trunnion fitting, accomplish the following:
Replacement/Reidentification of RABAB
(a) For airplanes not previously modified in accordance with
Saab Service Bulletin 340-32-124, Revision 01, dated May 21, 2002:
Within 12 months after the effective date of this AD, perform the
actions specified in paragraphs (a)(1) and (a)(2) of this AD in
accordance with the Accomplishment Instructions of Saab Service
Bulletin 340-32-131, dated June 29, 2004, including Attachments 1
and 2, both dated January 2002, and Attachments 3 and 4, both dated
April 2002.
Note 1: APPH Ltd. Service Bulletins AIR83022-32-28 and AIR83064-
32-08, both dated January 2002, comprising Attachments 1 and 2; and
Service Bulletins AIR83022-32-29 and AIR83064-32-09, both dated
April 2002, comprising Attachments 3 and 4; are incorporated into
Saab Service Bulletin 340-32-131 as additional sources of service
information.
(1) Replace the existing RABAB with a new RABAB.
(2) Re-identify the MLG shock strut.
Inspection of RABAB
(b) For airplanes previously modified in accordance with Saab
Service Bulletin 340-32-124, Revision 01, dated May 21, 2002: Within
6 months after the effective date of this AD, perform a one-time
detailed inspection for corrosion, fretting, or other damage of any
RABAB replaced in accordance with Saab Service Bulletin 340-32-124,
Revision 01; and applicable corrective actions; in accordance with
the Accomplishment Instructions of Saab Service Bulletin 340-32-131,
dated June 29, 2004, including Attachments 1 and 2, both dated
January 2002, and Attachments 3 and 4, both dated April 2002.
Note 2: For the purposes of this AD, a detailed inspection is
``an intensive examination of a specific item, installation, or
assembly to detect damage, failure, or irregularity. Available
lighting is normally supplemented with a direct source of good
lighting at an intensity deemed appropriate. Inspection aids such as
mirrors magnifying lenses, etc. may be necessary. Surface cleaning
and elaborate procedures may be required.''
Parts Installation
(c) As of the effective date of this AD, no person may install a
RABAB, part number (P/N) AIR83022-5 through -18 inclusive, or P/N
AIR83064 (any suffix), on any airplane.
Special Flight Permits
(d) Special flight permits are not allowed as specified in
section 21.197 and 21.199 of the Federal Aviation Regulations (14
CFR 21.197 and 21.199).
Alternative Methods of Compliance
(e) 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
(f) The actions shall be done in accordance with Saab Service
Bulletin 340-32-131, dated June 29, 2004; including Attachments 1
and 2, both dated January 2002, and Attachments 3 and 4, both dated
April 2002. 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 Saab Aircraft AB,
SAAB Aircraft Product Support, S-581.88, Link[ouml]ping, Sweden.
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 Swedish
airworthiness directive 1-195, effective July 6, 2004.
Effective Date
(g) This amendment becomes effective on January 4, 2005.
Issued in Renton, Washington, on November 17, 2004.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 04-26191 Filed 11-29-04; 8:45 am]
BILLING CODE 4910-13-P