Airworthiness Directives; Airbus Model A330-200, A330-300, A340-300, A340-500, and A340-600 Series Airplanes, 72323-72326 [E8-27940]

Download as PDF 72323 Federal Register / Vol. 73, No. 230 / Friday, November 28, 2008 / Rules and Regulations TABLE 1—MATERIAL INCORPORATED BY REFERENCE FOR ACTIONS REQUIRED IN THIS AD—Continued Service Bulletin Revision Date Boeing Special Attention Service Bulletin 737–25–1475 ..................................... BFGoodrich Service Bulletin 25–308 ................................................................... Original .................................................. Original .................................................. November 26, 2002. January 21, 2000. TABLE 2—MATERIAL INCORPORATED BY REFERENCE FOR THE OPTIONAL TERMINATING ACTION IN THIS AD Service Bulletin Revision Boeing Service Bulletin 737–25–1404 ................................................................. Boeing Special Attention Service Bulletin 737–25–1403 ..................................... Goodrich Service Bulletin 25–338 ........................................................................ 1 ............................................................ 1 ............................................................ 1 ............................................................ (1) The Director of the Federal Register approved the incorporation by reference of the service information listed in Table 3 of Date April 18, 2002. November 29, 2001. March 31, 2004. this AD under 5 U.S.C. 552(a) and 1 CFR part 51. TABLE 3—NEW MATERIAL INCORPORATED BY REFERENCE Service Bulletin Revision Boeing Service Bulletin 737–25–1404 ................................................................. Boeing Service Bulletin 737–25–1491 ................................................................. Boeing Special Attention Service Bulletin 737–25–1475 ..................................... Goodrich Service Bulletin 25–308 ........................................................................ 1 ............................................................ Original .................................................. Original .................................................. Original .................................................. (2) The Director of the Federal Register previously approved the incorporation by reference of Boeing Service Bulletin 737–25– 1404, dated May 25, 2000, on August 28, 2001 (66 FR 38361, July 24, 2001). (3) For service information identified in this AD, contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124–2207; telephone (206) 544–9990; fax (206) 766–5682; e-mail DDCS@boeing.com; Internet https:// www.myboeingfleet.com. (4) You may review copies of the service information that is incorporated by reference 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. Issued in Renton, Washington, on November 16, 2008. Stephen P. Boyd, Assistant Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–27926 Filed 11–26–08; 8:45 am] dwashington3 on PROD1PC60 with RULES BILLING CODE 4910–13–P VerDate Aug<31>2005 14:57 Nov 26, 2008 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2008–0910; Directorate Identifier 2008–NM–033–AD; Amendment 39–15749; AD 2008–24–09] RIN 2120–AA64 Airworthiness Directives; Airbus Model A330–200, A330–300, A340–300, A340– 500, and A340–600 Series Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: SUMMARY: We are superseding an existing 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: An A330 operator reported a shroud box bottom panel missing during a routine inspection. The same panel detached from an A330 aircraft during take-off, causing damage to the surrounding structure and to the Trimmable Horizontal Stabilizer (THS) tip fairing. The inspection indicated the blind rivets used to attach the panel worked loose causing fatigue damage with crack Jkt 217001 PO 00000 Frm 00021 Fmt 4700 Sfmt 4700 Date April 18, 2002. April 23, 2007. November 26, 2002. January 21, 2000. propagation through the fastener line resulting in panel detachment * * *. * * * Three additional events of panel loss have been experienced on in service aircraft already inspected in accordance with the AD requirements * * *. We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective January 2, 2009. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of January 2, 2009. 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: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–1138; 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 August 26, 2008 (73 FR E:\FR\FM\28NOR1.SGM 28NOR1 72324 Federal Register / Vol. 73, No. 230 / Friday, November 28, 2008 / Rules and Regulations 50256) and proposed to supersede AD 2007–08–05, Amendment 39–15022 (72 FR 18563, April 13, 2007). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI states: An A330 operator reported a shroud box bottom panel missing during a routine inspection. The same panel detached from an A330 aircraft during take-off, causing damage to the surrounding structure and to the Trimmable Horizontal Stabilizer (THS) tip fairing. The inspection indicated the blind rivets used to attach the panel worked loose causing fatigue damage with crack propagation through the fastener line resulting in panel detachment. To avoid potential injuries to persons on ground, Airworthiness Directive (AD) 2006– 0107 [which corresponds with FAA AD 2007–08–05] mandated a one time detailed visual inspection of the shroud box bottom panel. Further to issuance of AD 2006–0107, three additional events of panel loss have been experienced on in service aircraft already inspected in accordance with the AD requirements and no findings. Thus, it has been decided to delete this one time detailed visual inspection and to mandate a modification which prevents such unsafe condition. Therefore, the present AD supersedes EASA AD 2006–0107 and mandates the installation of a bolted shroud box bottom panel instead of blind riveted metallic design. The modification includes doing all applicable related investigative and corrective actions. The related investigative action is an inspection to detect cracks of the shroud box hole. The corrective action is repairing any cracked shroud box hole. The applicability of the MCAI has been revised; certain airplanes have been removed and others added. 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. dwashington3 on PROD1PC60 with RULES Conclusion We reviewed the available data and determined that air safety and the 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. VerDate Aug<31>2005 14:57 Nov 26, 2008 Jkt 217001 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 34 products of U.S. registry. We also estimate that it will take about 20 work-hours per product to comply with the basic requirements of this AD. The average labor rate is $80 per work-hour. Required parts will cost about $990 per product. Where the service information lists required parts costs that are covered under warranty, we have assumed that there will be no charge for these parts. As we do not control warranty coverage for affected parties, some parties may incur costs higher than estimated here. Based on these figures, we estimate the cost of this AD to the U.S. operators to be $88,060, or $2,590 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: PO 00000 Frm 00022 Fmt 4700 Sfmt 4700 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, 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: ■ PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by removing Amendment 39–15022 (72 FR 18563, April 13, 2007) and adding the following new AD: ■ 2008–24–09 Airbus: Amendment 39–15749. Docket No. FAA–2008–0910; Directorate Identifier 2008–NM–033–AD. Effective Date (a) This airworthiness directive (AD) becomes effective January 2, 2009. Affected ADs (b) This AD supersedes AD 2007–08–05, Amendment 39–15022. Applicability (c) This AD applies to Airbus airplanes identified in Table 1 of this AD; certificated in any category. E:\FR\FM\28NOR1.SGM 28NOR1 Federal Register / Vol. 73, No. 230 / Friday, November 28, 2008 / Rules and Regulations 72325 TABLE 1—APPLICABILITY For model— On which— Except for those airplanes on which— (1) A330–200, A330–300, and A340–300 series, all certified models, all serial numbers. (2) Airbus A340–500 and A340– 600 series, all certified models, all serial numbers. Airbus modification 46077 has been embodied in production. Airbus Modification 55568 has been done in production, or Airbus Mandatory Service Bulletin A330–57–3100 or Airbus Mandatory Service Bulletin A340–57–4109 has been embodied in service. Airbus Modification 55568 has been embodied in production, or Airbus Mandatory Service Bulletin A340–57–5018 has been embodied in service. None .............................................. Subject (d) Air Transport Association (ATA) of America Code 57: Wings. Reason (e) The mandatory continuing airworthiness information (MCAI) states: An A330 operator reported a shroud box bottom panel missing during a routine inspection. The same panel detached from an A330 aircraft during take-off, causing damage to the surrounding structure and to the Trimmable Horizontal Stabilizer (THS) tip fairing. The inspection indicated the blind rivets used to attach the panel worked loose causing fatigue damage with crack propagation through the fastener line resulting in panel detachment. To avoid potential injuries to persons on ground, Airworthiness Directive (AD) 2006– 0107 [which corresponds with FAA AD 2007–08–05] mandated a one time detailed visual inspection of the shroud box bottom panel. Further to issuance of AD 2006–0107, three additional events of panel loss have been experienced on in service aircraft already inspected in accordance with the AD requirements and no findings. Thus, it has been decided to delete this one time detailed visual inspection and to mandate a modification which prevents such unsafe condition. Therefore, the present AD supersedes EASA AD 2006–0107 and mandates the installation of a bolted shroud box bottom panel instead of blind riveted metallic design. The modification includes doing all applicable related investigative and corrective actions. The related investigative action is an inspection to detect cracks of the shroud box hole. The corrective action is repairing any cracked shroud box hole. New Requirements of This AD: Actions and Compliance (f) Unless already done: Within 69 months after the effective date of this AD, modify the shroud box bottom skin panel on both wings, and do all applicable related investigative and corrective actions, by accomplishing all the actions in the applicable service bulletins identified in Table 2 of this AD. Do all applicable related investigative and corrective actions before further flight. TABLE 2—SERVICE BULLETINS Service Bulletin— Date— Airbus Mandatory Service Bulletin A330–57–3100 .................................................................................................................... Airbus Mandatory Service Bulletin A340–57–4109 .................................................................................................................... Airbus Mandatory Service Bulletin A340–57–5018 .................................................................................................................... October 1, 2007. October 1, 2007. October 1, 2007. FAA AD Differences Note: This AD differs from the MCAI and/ or service information as follows: No differences. dwashington3 on PROD1PC60 with RULES Other FAA AD Provisions (g) 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: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–1138; fax (425) 227–1149. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (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, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120–0056. Related Information (h) Refer to MCAI European Aviation Safety Agency Airworthiness Directive 2008– 0002, dated January 7, 2008, and the service bulletins identified in Table 2 of this AD for related information. Material Incorporated by Reference (i) You must use the service information specified in Table 3 of this AD to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Airbus SAS—Airworthiness Office—EAL, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; fax +33 5 61 93 45 80, e-mail airworthiness.A330– A340@airbus.com; Internet http:// www.airbus.com. (3) You may review copies 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. TABLE 3—MATERIAL INCORPORATED BY REFERENCE Service Bulletin— Date— Airbus Mandatory Service Bulletin A330–57–3100 .................................................................................................................... Airbus Mandatory Service Bulletin A340–57–4109 .................................................................................................................... October 1, 2007. October 1, 2007. VerDate Aug<31>2005 14:57 Nov 26, 2008 Jkt 217001 PO 00000 Frm 00023 Fmt 4700 Sfmt 4700 E:\FR\FM\28NOR1.SGM 28NOR1 72326 Federal Register / Vol. 73, No. 230 / Friday, November 28, 2008 / Rules and Regulations TABLE 3—MATERIAL INCORPORATED BY REFERENCE—Continued Service Bulletin— Date— Airbus Mandatory Service Bulletin A340–57–5018 .................................................................................................................... October 1, 2007. Issued in Renton, Washington, on November 16, 2008. Stephen P. Boyd, Assistant Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–27940 Filed 11–26–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2008–1244; Directorate Identifier 2008–SW–59–AD; Amendment 39– 15752; AD 2008–22–52] RIN 2120–AA64 Airworthiness Directives; MD Helicopters, Inc. Model 500N and 600N Helicopters Federal Aviation Administration, DOT. ACTION: Final rule; request for comments. dwashington3 on PROD1PC60 with RULES AGENCY: SUMMARY: This document supersedes AD 2008–18–52 and publishes in the Federal Register an amendment adopting Emergency Airworthiness Directive (AD) 2008–22–52 which was sent previously to all known U.S. owners and operators of MD Helicopters, Inc. (MDHI) Model 500N and 600N helicopters by individual letters. This AD requires turning OFF the Yaw Stability Augmentation System (YSAS); installing a placard that limits airspeed to 100 KTS or VNE, whichever is less; and revising the limitations section of the Rotorcraft Flight Manual (RFM) to reflect that limitation. Finally, replacing the adapter tubes with airworthy adapter tubes that have a production date code stamp is required. This AD is prompted by several occurrences of failed adapter tubes on the Model MD900 helicopter which uses the same adapter tubes. The actions specified by this AD are intended to prevent loss of yaw control and subsequent loss of control of the helicopter. Effective December 15, 2008, to all persons except those persons to whom it was made immediately effective by Emergency AD 2008–22–52, issued on October 23, 2008, which DATES: VerDate Aug<31>2005 14:57 Nov 26, 2008 Jkt 217001 contained the requirements of this amendment. Comments for inclusion in the Rules Docket must be received on or before January 27, 2009. ADDRESSES: Use one of the following addresses to submit comments on this AD: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. You may get the service information identified in this AD from MD Helicopters Inc., Attn: Customer Support Division, 4555 E. McDowell Rd., Mail Stop M615, Mesa, Arizona 85215–9734, telephone 1–800–388– 3378, fax 480–346–6813, or on the Web at http://www.mdhelicopters.com. Examining the Docket: You may examine the docket that contains the AD, any comments, and other information 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 Docket Operations office (telephone (800) 647– 5527) is located in Room W12–140 on the ground floor of the West Building at the street address stated in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Eric D. Schrieber, FAA, Los Angeles Aircraft Certification Office, Aviation Safety Engineer, Airframe Branch, 3960 Paramount Blvd., Lakewood, California 90712, telephone 562–627–5348, fax 562–627–5210. SUPPLEMENTARY INFORMATION: On August 20, 2008, we issued Emergency AD 2008–18–51 for 500N, 600N, and MD900 helicopters. Emergency AD 2008–18–51 was prompted by reports that 2 MD900 helicopters experienced failed vertical stabilizer control system PO 00000 Frm 00024 Fmt 4700 Sfmt 4700 (VSCS) adapter tubes. In one case, the helicopter experienced an uncommanded yaw, resulting in loss of a window and a door. The Emergency AD required several actions related to the YSAS for the Model 500N and 600N helicopters and to the vertical stabilizer control system (VSCS) for the Model MD900 helicopters. After we issued Emergency AD 2008– 18–51, we discovered that pulling the circuit breaker per the Emergency AD caused impaired directional control, which could result in loss of control of the helicopter. Therefore, on August 27, 2008, we issued superseding Emergency AD 2008–18–52, which requires, for Model 500N, 600N and MD900 helicopters, turning OFF the VSCS or YSAS switches instead of pulling the circuit breakers and installing placards that limit airspeed to 100 KIAS or VNE, whichever is less. For the Model MD900 helicopters, limiting flight to VFR, prohibiting use of the autopilot, and making changes to the Emergency Procedures and Airworthiness (sic) Limitations sections of the RFM are also required. For all of the helicopter models, Emergency AD 2008–18–52 requires, within 45 days, terminating action by replacing the adapter tube with an airworthy adapter tube that has a date stamp of August 15, 2008 or later, and then removing the placards, removing the AD limitation changes from the RFM, and returning all switches and circuit breakers to their normal positions. Since the issuance of Emergency AD 2008–18–52, we have had additional occurrences of failed adapter tubes on the MD900 helicopters. The replacement adapter tube that was terminating action for the requirements of Emergency AD 2008–18–52 failed on 2 of the MD900 helicopters. Furthermore, adapter tubes without a production date code stamp remain a safety concern on the 500N and 600N helicopters because they may not conform to the FAA-approved design. Therefore, we separated the AD actions and issued 2 superseding Emergency ADs; 2008–22–52 for the 500N and 600N helicopters, and 2008–22–53 for the MD900 helicopters. Emergency AD 2008–22–52 applies to the 500N and 600N helicopters and continues to require the same actions as Emergency AD 2008–18–52; however, E:\FR\FM\28NOR1.SGM 28NOR1

Agencies

[Federal Register Volume 73, Number 230 (Friday, November 28, 2008)]
[Rules and Regulations]
[Pages 72323-72326]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-27940]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0910; Directorate Identifier 2008-NM-033-AD; 
Amendment 39-15749; AD 2008-24-09]
RIN 2120-AA64


Airworthiness Directives; Airbus Model A330-200, A330-300, A340-
300, A340-500, and A340-600 Series Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are superseding an existing 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:

    An A330 operator reported a shroud box bottom panel missing 
during a routine inspection. The same panel detached from an A330 
aircraft during take-off, causing damage to the surrounding 
structure and to the Trimmable Horizontal Stabilizer (THS) tip 
fairing.
    The inspection indicated the blind rivets used to attach the 
panel worked loose causing fatigue damage with crack propagation 
through the fastener line resulting in panel detachment * * *.
    * * * Three additional events of panel loss have been 
experienced on in service aircraft already inspected in accordance 
with the AD requirements * * *.

    We are issuing this AD to require actions to correct the unsafe 
condition on these products.

DATES: This AD becomes effective January 2, 2009.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of January 2, 
2009.

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: Vladimir Ulyanov, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
227-1138; 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 August 26, 2008 (73 
FR

[[Page 72324]]

50256) and proposed to supersede AD 2007-08-05, Amendment 39-15022 (72 
FR 18563, April 13, 2007). That NPRM proposed to correct an unsafe 
condition for the specified products. The MCAI states:

    An A330 operator reported a shroud box bottom panel missing 
during a routine inspection. The same panel detached from an A330 
aircraft during take-off, causing damage to the surrounding 
structure and to the Trimmable Horizontal Stabilizer (THS) tip 
fairing.
    The inspection indicated the blind rivets used to attach the 
panel worked loose causing fatigue damage with crack propagation 
through the fastener line resulting in panel detachment.
    To avoid potential injuries to persons on ground, Airworthiness 
Directive (AD) 2006-0107 [which corresponds with FAA AD 2007-08-05] 
mandated a one time detailed visual inspection of the shroud box 
bottom panel.
    Further to issuance of AD 2006-0107, three additional events of 
panel loss have been experienced on in service aircraft already 
inspected in accordance with the AD requirements and no findings. 
Thus, it has been decided to delete this one time detailed visual 
inspection and to mandate a modification which prevents such unsafe 
condition. Therefore, the present AD supersedes EASA AD 2006-0107 
and mandates the installation of a bolted shroud box bottom panel 
instead of blind riveted metallic design.

    The modification includes doing all applicable related 
investigative and corrective actions. The related investigative action 
is an inspection to detect cracks of the shroud box hole. The 
corrective action is repairing any cracked shroud box hole. The 
applicability of the MCAI has been revised; certain airplanes have been 
removed and others added. 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 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 34 products of U.S. 
registry. We also estimate that it will take about 20 work-hours per 
product to comply with the basic requirements of this AD. The average 
labor rate is $80 per work-hour. Required parts will cost about $990 
per product. Where the service information lists required parts costs 
that are covered under warranty, we have assumed that there will be no 
charge for these parts. As we do not control warranty coverage for 
affected parties, some parties may incur costs higher than estimated 
here. Based on these figures, we estimate the cost of this AD to the 
U.S. operators to be $88,060, or $2,590 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, 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 FAA amends Sec.  39.13 by removing Amendment 39-15022 (72 FR 
18563, April 13, 2007) and adding the following new AD:

2008-24-09 Airbus: Amendment 39-15749. Docket No. FAA-2008-0910; 
Directorate Identifier 2008-NM-033-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective January 
2, 2009.

Affected ADs

    (b) This AD supersedes AD 2007-08-05, Amendment 39-15022.

Applicability

    (c) This AD applies to Airbus airplanes identified in Table 1 of 
this AD; certificated in any category.

[[Page 72325]]



                         Table 1--Applicability
------------------------------------------------------------------------
                                                      Except for those
          For model--               On which--      airplanes on which--
------------------------------------------------------------------------
(1) A330-200, A330-300, and     Airbus             Airbus Modification
 A340-300 series, all            modification       55568 has been done
 certified models, all serial    46077 has been     in production, or
 numbers.                        embodied in        Airbus Mandatory
                                 production.        Service Bulletin
                                                    A330-57-3100 or
                                                    Airbus Mandatory
                                                    Service Bulletin
                                                    A340-57-4109 has
                                                    been embodied in
                                                    service.
(2) Airbus A340-500 and A340-   None.............  Airbus Modification
 600 series, all certified                          55568 has been
 models, all serial numbers.                        embodied in
                                                    production, or
                                                    Airbus Mandatory
                                                    Service Bulletin
                                                    A340-57-5018 has
                                                    been embodied in
                                                    service.
------------------------------------------------------------------------

Subject

    (d) Air Transport Association (ATA) of America Code 57: Wings.

Reason

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

    An A330 operator reported a shroud box bottom panel missing 
during a routine inspection. The same panel detached from an A330 
aircraft during take-off, causing damage to the surrounding 
structure and to the Trimmable Horizontal Stabilizer (THS) tip 
fairing.
    The inspection indicated the blind rivets used to attach the 
panel worked loose causing fatigue damage with crack propagation 
through the fastener line resulting in panel detachment.
    To avoid potential injuries to persons on ground, Airworthiness 
Directive (AD) 2006-0107 [which corresponds with FAA AD 2007-08-05] 
mandated a one time detailed visual inspection of the shroud box 
bottom panel.
    Further to issuance of AD 2006-0107, three additional events of 
panel loss have been experienced on in service aircraft already 
inspected in accordance with the AD requirements and no findings. 
Thus, it has been decided to delete this one time detailed visual 
inspection and to mandate a modification which prevents such unsafe 
condition. Therefore, the present AD supersedes EASA AD 2006-0107 
and mandates the installation of a bolted shroud box bottom panel 
instead of blind riveted metallic design.

    The modification includes doing all applicable related 
investigative and corrective actions. The related investigative 
action is an inspection to detect cracks of the shroud box hole. The 
corrective action is repairing any cracked shroud box hole.

New Requirements of This AD: Actions and Compliance

    (f) Unless already done: Within 69 months after the effective 
date of this AD, modify the shroud box bottom skin panel on both 
wings, and do all applicable related investigative and corrective 
actions, by accomplishing all the actions in the applicable service 
bulletins identified in Table 2 of this AD. Do all applicable 
related investigative and corrective actions before further flight.

                       Table 2--Service Bulletins
------------------------------------------------------------------------
          Service Bulletin--                         Date--
------------------------------------------------------------------------
Airbus Mandatory Service Bulletin      October 1, 2007.
 A330-57-3100.
Airbus Mandatory Service Bulletin      October 1, 2007.
 A340-57-4109.
Airbus Mandatory Service Bulletin      October 1, 2007.
 A340-57-5018.
------------------------------------------------------------------------

FAA AD Differences

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

Other FAA AD Provisions

    (g) 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: 
Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, 
Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, 
Washington 98057-3356; telephone (425) 227-1138; fax (425) 227-1149. 
Before using any approved AMOC on any airplane to which the AMOC 
applies, notify your appropriate principal inspector (PI) in the FAA 
Flight Standards District Office (FSDO), or lacking a PI, your local 
FSDO.
    (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, the 
Office of Management and Budget (OMB) has approved the information 
collection requirements and has assigned OMB Control Number 2120-
0056.

Related Information

    (h) Refer to MCAI European Aviation Safety Agency Airworthiness 
Directive 2008-0002, dated January 7, 2008, and the service 
bulletins identified in Table 2 of this AD for related information.

Material Incorporated by Reference

    (i) You must use the service information specified in Table 3 of 
this AD to do the actions required by this AD, unless the AD 
specifies otherwise.
    (1) The Director of the Federal Register approved the 
incorporation by reference of this service information under 5 
U.S.C. 552(a) and 1 CFR part 51.
    (2) For service information identified in this AD, contact 
Airbus SAS--Airworthiness Office--EAL, 1 Rond Point Maurice 
Bellonte, 31707 Blagnac Cedex, France; fax +33 5 61 93 45 80, e-mail 
airworthiness.A330-A340@airbus.com; Internet http://www.airbus.com.
    (3) You may review copies 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.

               Table 3--Material Incorporated by Reference
------------------------------------------------------------------------
          Service Bulletin--                         Date--
------------------------------------------------------------------------
Airbus Mandatory Service Bulletin      October 1, 2007.
 A330-57-3100.
Airbus Mandatory Service Bulletin      October 1, 2007.
 A340-57-4109.

[[Page 72326]]

 
Airbus Mandatory Service Bulletin      October 1, 2007.
 A340-57-5018.
------------------------------------------------------------------------


    Issued in Renton, Washington, on November 16, 2008.
Stephen P. Boyd,
Assistant Manager, Transport Airplane Directorate, Aircraft 
Certification Service.
 [FR Doc. E8-27940 Filed 11-26-08; 8:45 am]
BILLING CODE 4910-13-P