Airworthiness Directives; Saab Model SAAB-Fairchild SF340A (SAAB/SF340A) and SAAB 340B Airplanes, 27598-27599 [06-4309]

Download as PDF 27598 Federal Register / Vol. 71, No. 92 / Friday, May 12, 2006 / Rules and Regulations requirements of paragraph (h)(2)(i) of this AD. Alternative Methods of Compliance (AMOCs) Related Information (k) French airworthiness directive F–2005– 046, dated March 16, 2005, also addresses the subject of this AD. (j)(1) 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. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Material Incorporated by Reference (l) You must use Airbus Service Bulletin A320–25–1365, dated February 18, 2005, to perform the actions that are required by this AD, unless the AD specifies otherwise. The optional terminating action, if accomplished, must be done in accordance with the service information in Table 2 of this AD, as applicable, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference of these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Room PL–401, Nassif Building, Washington, DC; on the Internet at https://dms.dot.gov; or at 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 https:// www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. TABLE 2.—MATERIAL FOR OPTIONAL TERMINATING ACTION INCORPORATED BY REFERENCE Airbus service bulletin Revision level A320–25–1289 ................................................... A320–25–1357 ................................................... A320–25–1365 ................................................... 01 ..................................................................... Original ............................................................. Original ............................................................. Issued in Renton, Washington, on April 26, 2006. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06–4134 Filed 5–11–06; 8:45 am] BILLING CODE 4910–13–U DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2006–24075; Directorate Identifier 2005–NM–235–AD; Amendment 39–14589; AD 2006–10–05] RIN 2120–AA64 Airworthiness Directives; Saab Model SAAB-Fairchild SF340A (SAAB/ SF340A) and SAAB 340B Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. jlentini on PROD1PC65 with RULES AGENCY: SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain Saab Model SAAB-Fairchild SF340A (SAAB/SF340A) and SAAB 340B airplanes. This AD requires a one-time inspection to see if a faulty uplock axle for the shock strut of the main landing gear (MLG) is installed, and replacing the uplock axle with a new uplock axle if necessary. This AD results from a report of a cracked uplock axle caused by hydrogen embrittlement during the manufacturing process. We are issuing this AD to prevent failure of the uplock mechanism, which, combined with a loss of hydraulic pressure, could result VerDate Aug<31>2005 16:08 May 11, 2006 Jkt 208001 Date in an uncommanded extension of the MLG. This AD becomes effective June 16, 2006. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of June 16, 2006. DATES: You may examine the AD docket on the Internet at https:// dms.dot.gov or in person at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL–401, Washington, DC. Contact Saab Aircraft AB, SAAB Aircraft Product Support, S–581.88, ¨ Linkoping, Sweden, for service information identified in this AD. ADDRESSES: Dan Rodina, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98055–4056; telephone (425) 227–2125; fax (425) 227–1149. FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: Examining the Docket You may examine the airworthiness directive (AD) docket on the Internet at https://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 street address stated in the ADDRESSES section. PO 00000 Frm 00016 Fmt 4700 Sfmt 4700 October 29, 2003. July 19, 2004. February 18, 2005. Discussion The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to certain Saab Model SAABFairchild SF340A (SAAB/SF340A) and SAAB 340B airplanes. That NPRM was published in the Federal Register on March 7, 2006 (71 FR 11349). That NPRM proposed to require a one-time inspection to see if a faulty uplock axle for the shock strut of the main landing gear (MLG) is installed, and replacing the uplock axle with a new uplock axle if necessary. Comments We provided the public the opportunity to participate in the development of this AD. We received no comments on the NPRM 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 248 airplanes of U.S. registry. The required inspection will take about 1 work hour per airplane, at an average labor rate of $65 per work hour. Based on these figures, the estimated cost of the AD for U.S. operators is $16,120, or $65 per airplane. 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 E:\FR\FM\12MYR1.SGM 12MYR1 27599 Federal Register / Vol. 71, No. 92 / Friday, May 12, 2006 / Rules and Regulations 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 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 and placed it in the AD docket. 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 Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: I PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: jlentini on PROD1PC65 with RULES I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 I VerDate Aug<31>2005 16:08 May 11, 2006 Jkt 208001 by adding the following new airworthiness directive (AD): airplane if it has an affected S/N identified in accordance with paragraph (f) of this AD. 2006–10–05 SAAB AIRCRAFT AB: Amendment 39–14589. Docket No. FAA– 2006–24075; Directorate Identifier 2005– NM–235–AD. No Reporting Requirement Effective Date (a) This AD becomes effective June 16, 2006. (i) Although the Accomplishment Instructions of Saab Service Bulletin 340–32– 132, dated November 3, 2005, specify to send a report with the S/N of replaced uplock axles to APPH Ltd., this AD does not include that requirement. Affected ADs (b) None. Alternative Methods of Compliance (AMOCs) Applicability (c) This AD applies to SAAB Model SAABFairchild SF340A (SAAB/SF340A) and SAAB 340B airplanes, certificated in any category; serial numbers SAAB SF340A–004 through –159 inclusive, and SAAB 340B–160 through –459 inclusive. Unsafe Condition (d) This AD results from a report of a cracked uplock axle of the main landing gear (MLG) shock strut caused by hydrogen embrittlement during the manufacturing process. We are issuing this AD to prevent failure of the uplock mechanism, which, combined with a loss of hydraulic pressure, could result in an uncommanded extension of the MLG. 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. Inspection To Determine Part Serial Number (f) Within 6 months after the effective date of this AD, inspect the uplock axle of the MLG shock strut to determine whether an affected serial number (S/N) is installed. A review of airplane maintenance records is acceptable in lieu of this inspection if the S/ N of the uplock axle can be conclusively determined from that review. Do the inspection in accordance with the Accomplishment Instructions of Saab Service Bulletin 340–32–132, dated November 3, 2005. Note 1: The Saab service bulletin refers to APPH Service Bulletins AIR83022–32–31, Revision 1; and AIR83064–32–11, Revision 1; both dated October 2005; as additional sources of service information for identifying uplock axles with affected S/Ns, and replacing the axles if necessary. The APPH service bulletins are attached to the Saab service bulletin. Corrective Action (g) Before further flight after accomplishing the inspection required by paragraph (f) of this AD: Replace with a new uplock axle any uplock axle with an affected S/N identified by the inspection in paragraph (f) of this AD. Do all actions in accordance with the Accomplishment Instructions of Saab Service Bulletin 340–32–132, dated November 3, 2005. Parts Installation (h) As of the effective date of this AD, no person may install an uplock axle on any PO 00000 Frm 00017 Fmt 4700 Sfmt 4700 (j)(1) 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. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Related Information (k) Swedish airworthiness directive 1–199, effective November 9, 2005, also addresses the subject of this AD. Material Incorporated by Reference (l) You must use Saab Service Bulletin 340–32–132, dated November 3, 2005, including the attachments listed in Table 1 of this AD, to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference of this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Saab Aircraft AB, SAAB Aircraft ¨ Product Support, S–581.88, Linkoping, Sweden, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Room PL–401, Nassif Building, Washington, DC; on the Internet at https:// dms.dot.gov; or at 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 https://www.archives.gov/ federal_register/code_of_federal_regulations/ ibr_locations.html. TABLE 1.—APPH SERVICE BULLETINS ATTACHED TO SAAB SERVICE BULLETIN APPH service bulletin AIR83022–32–31 .... AIR83064–32–11 .... Revision level 1 1 Date Oct. 2005. Oct. 2005. Issued in Renton, Washington, on April 28, 2006. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06–4309 Filed 5–11–06; 8:45 am] BILLING CODE 4910–13–P E:\FR\FM\12MYR1.SGM 12MYR1

Agencies

[Federal Register Volume 71, Number 92 (Friday, May 12, 2006)]
[Rules and Regulations]
[Pages 27598-27599]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 06-4309]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-24075; Directorate Identifier 2005-NM-235-AD; 
Amendment 39-14589; AD 2006-10-05]
RIN 2120-AA64


Airworthiness Directives; Saab Model SAAB-Fairchild SF340A (SAAB/
SF340A) and SAAB 340B Airplanes

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

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Saab Model SAAB-Fairchild SF340A (SAAB/SF340A) and SAAB 340B 
airplanes. This AD requires a one-time inspection to see if a faulty 
uplock axle for the shock strut of the main landing gear (MLG) is 
installed, and replacing the uplock axle with a new uplock axle if 
necessary. This AD results from a report of a cracked uplock axle 
caused by hydrogen embrittlement during the manufacturing process. We 
are issuing this AD to prevent failure of the uplock mechanism, which, 
combined with a loss of hydraulic pressure, could result in an 
uncommanded extension of the MLG.

DATES: This AD becomes effective June 16, 2006.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of June 16, 
2006.

ADDRESSES: You may examine the AD docket on the Internet at https://
dms.dot.gov or in person at the Docket Management Facility, U.S. 
Department of Transportation, 400 Seventh Street, SW., Nassif Building, 
Room PL-401, Washington, DC.
    Contact Saab Aircraft AB, SAAB Aircraft Product Support, S-581.88, 
Link[ouml]ping, Sweden, for service information identified in this AD.

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

SUPPLEMENTARY INFORMATION:

Examining the Docket

    You may examine the airworthiness directive (AD) docket on the 
Internet at https://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 street address stated in the ADDRESSES section.

Discussion

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 to include an AD that would apply to certain Saab Model 
SAAB-Fairchild SF340A (SAAB/SF340A) and SAAB 340B airplanes. That NPRM 
was published in the Federal Register on March 7, 2006 (71 FR 11349). 
That NPRM proposed to require a one-time inspection to see if a faulty 
uplock axle for the shock strut of the main landing gear (MLG) is 
installed, and replacing the uplock axle with a new uplock axle if 
necessary.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We received no comments on the NPRM 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 248 airplanes of U.S. registry. The 
required inspection will take about 1 work hour per airplane, at an 
average labor rate of $65 per work hour. Based on these figures, the 
estimated cost of the AD for U.S. operators is $16,120, or $65 per 
airplane.

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

[[Page 27599]]

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 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 and placed it in the AD docket. 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 Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

2006-10-05 SAAB AIRCRAFT AB: Amendment 39-14589. Docket No. FAA-
2006-24075; Directorate Identifier 2005-NM-235-AD.

Effective Date

    (a) This AD becomes effective June 16, 2006.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to SAAB Model SAAB-Fairchild SF340A (SAAB/
SF340A) and SAAB 340B airplanes, certificated in any category; 
serial numbers SAAB SF340A-004 through -159 inclusive, and SAAB 
340B-160 through -459 inclusive.

Unsafe Condition

    (d) This AD results from a report of a cracked uplock axle of 
the main landing gear (MLG) shock strut caused by hydrogen 
embrittlement during the manufacturing process. We are issuing this 
AD to prevent failure of the uplock mechanism, which, combined with 
a loss of hydraulic pressure, could result in an uncommanded 
extension of the MLG.

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.

Inspection To Determine Part Serial Number

    (f) Within 6 months after the effective date of this AD, inspect 
the uplock axle of the MLG shock strut to determine whether an 
affected serial number (S/N) is installed. A review of airplane 
maintenance records is acceptable in lieu of this inspection if the 
S/N of the uplock axle can be conclusively determined from that 
review. Do the inspection in accordance with the Accomplishment 
Instructions of Saab Service Bulletin 340-32-132, dated November 3, 
2005.

    Note 1: The Saab service bulletin refers to APPH Service 
Bulletins AIR83022-32-31, Revision 1; and AIR83064-32-11, Revision 
1; both dated October 2005; as additional sources of service 
information for identifying uplock axles with affected S/Ns, and 
replacing the axles if necessary. The APPH service bulletins are 
attached to the Saab service bulletin.

Corrective Action

    (g) Before further flight after accomplishing the inspection 
required by paragraph (f) of this AD: Replace with a new uplock axle 
any uplock axle with an affected S/N identified by the inspection in 
paragraph (f) of this AD. Do all actions in accordance with the 
Accomplishment Instructions of Saab Service Bulletin 340-32-132, 
dated November 3, 2005.

Parts Installation

    (h) As of the effective date of this AD, no person may install 
an uplock axle on any airplane if it has an affected S/N identified 
in accordance with paragraph (f) of this AD.

No Reporting Requirement

    (i) Although the Accomplishment Instructions of Saab Service 
Bulletin 340-32-132, dated November 3, 2005, specify to send a 
report with the S/N of replaced uplock axles to APPH Ltd., this AD 
does not include that requirement.

Alternative Methods of Compliance (AMOCs)

    (j)(1) 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.
    (2) Before using any AMOC approved in accordance with Sec.  
39.19 on any airplane to which the AMOC applies, notify the 
appropriate principal inspector in the FAA Flight Standards 
Certificate Holding District Office.

Related Information

    (k) Swedish airworthiness directive 1-199, effective November 9, 
2005, also addresses the subject of this AD.

Material Incorporated by Reference

    (l) You must use Saab Service Bulletin 340-32-132, dated 
November 3, 2005, including the attachments listed in Table 1 of 
this AD, to perform the actions that are required by this AD, unless 
the AD specifies otherwise. The Director of the Federal Register 
approved the incorporation by reference of this document in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Saab 
Aircraft AB, SAAB Aircraft Product Support, S-581.88, 
Link[ouml]ping, Sweden, for a copy of this service information. You 
may review copies at the Docket Management Facility, U.S. Department 
of Transportation, 400 Seventh Street, SW., Room PL-401, Nassif 
Building, Washington, DC; on the Internet at https://dms.dot.gov; or 
at 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 https://www.archives.gov/federal_register/
code_of_federal_regulations/ibr_locations.html.

   Table 1.--APPH Service Bulletins Attached to Saab Service Bulletin
------------------------------------------------------------------------
                                        Revision
        APPH service  bulletin           level             Date
------------------------------------------------------------------------
AIR83022-32-31.......................          1  Oct. 2005.
AIR83064-32-11.......................          1  Oct. 2005.
------------------------------------------------------------------------


    Issued in Renton, Washington, on April 28, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 06-4309 Filed 5-11-06; 8:45 am]
BILLING CODE 4910-13-P