Airworthiness Directives; BAE Systems (Operations) Limited Model ATP Airplanes, 40230-40233 [E7-14134]

Download as PDF 40230 Federal Register / Vol. 72, No. 141 / Tuesday, July 24, 2007 / Rules and Regulations 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/cfr/ibrlocations.html. Issued in Renton, Washington, on July 11, 2007. Stephen P. Boyd, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–13979 Filed 7–23–07; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–28747; Directorate Identifier 2006–NM–275–AD; Amendment 39–15137; AD 2007–15–08] RIN 2120–AA64 Airworthiness Directives; BAE Systems (Operations) Limited Model ATP Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request for comments. pwalker on PROD1PC71 with RULES AGENCY: SUMMARY: The FAA is superseding an existing airworthiness directive (AD), which applies to all BAE Systems (Operations) Limited Model ATP airplanes. The existing AD currently requires revising the Airworthiness Limitations Section (ALS) of the Instructions for Continued Airworthiness (ICA) to incorporate life limits for certain items and inspections to detect fatigue cracking in certain structures; to incorporate new inspections to detect fatigue cracking of certain significant structural items (SSIs); and to revise life limits for certain equipment and various components. This new AD requires revising the ALS of the ICA to include revised requirements. This AD results from the determination that additional and revised inspections of the fuselage are needed. We are issuing this AD to detect and correct fatigue cracking of certain structural elements, which could result in reduced structural integrity of the airplane and consequent rapid decompression of the airplane. DATES: This AD becomes effective August 8, 2007. On September 21, 2006 (71 FR 52418, September 6, 2006), the Director of the Federal Register approved the incorporation by reference of BAE VerDate Aug<31>2005 17:17 Jul 23, 2007 Jkt 211001 Systems (Operations) Limited Service Bulletin ATP–51–002, dated December 20, 2005. We must receive comments on this AD by September 24, 2007. ADDRESSES: Use one of the following addresses to submit comments on this AD. • DOT Docket Web site: Go to http://dms.dot.gov and follow the instructions for sending your comments electronically. • Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your comments electronically. • 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. • Fax: (202) 493–2251. • Hand Delivery: Room W12–140 on the ground floor of the West Building, 1200 New Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Contact British Aerospace Regional Aircraft American Support, 13850 Mclearen Road, Herndon, Virginia 20171, for service information identified in this AD. FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, International Branch, ANM–116, FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–1175; fax (425) 227–1149. SUPPLEMENTARY INFORMATION: Discussion On August 23, 2006, we issued AD 2006–18–09, amendment 39–14748 (71 FR 52418, September 6, 2006), for all BAE Systems (Operations) Limited Model ATP airplanes. That AD requires revising the Airworthiness Limitations Section (ALS) of the Instructions for Continued Airworthiness (ICA) to incorporate life limits for certain items and inspections to detect fatigue cracking in certain structures; to incorporate new inspections to detect fatigue cracking of certain significant structural items (SSIs); and to revise life limits for certain equipment and various components. That AD resulted from manufacturer review of fatigue test results that identified additional and revised inspections of the fuselage that are necessary in order to ensure the continued structural integrity of the airplane. We issued that AD to detect and correct fatigue cracking of certain structural elements, which could result in reduced structural integrity of the PO 00000 Frm 00016 Fmt 4700 Sfmt 4700 airplane and consequent rapid decompression of the airplane. The actions specified in that AD correspond to British airworthiness directive G– 2004–0020, dated August 25, 2004, and European Aviation Safety Agency (EASA) airworthiness directive 2006– 0090, dated April 20, 2006. Actions Since Existing AD Was Issued Since we issued AD 2006–18–09, the Civil Aviation Authority (CAA), which is the airworthiness authority for the United Kingdom, notified us that an unsafe condition may exist on all BAE Systems (Operations) Limited Model ATP airplanes. The CAA advises that the certification requirements for damage tolerant and safe life structure are given in Chapter 5 of the BAE ATP aircraft maintenance manual (AMM). The CAA has identified the need to revise these requirements to add and change inspections of the fuselage. The revisions primarily recognize the introduction of Modification JDM60138N, which installs an energyabsorbing stop to aircraft fitted with the large freight door. Failure to adopt the latest revision of Chapter 5 of the AMM could result in fatigue cracking of certain structural elements remaining undetected, which could result in reduced structural integrity of the airplane and consequent rapid decompression of the airplane. Relevant Service Information BAE Systems (Operations) Limited has issued revisions to Section 05–10– 12, ‘‘Mandatory Life Limitations (Airframe—Structures),’’ dated January 15, 2007; Section 05–10–15, ‘‘Mandatory Life Limitations (Powerplant/Engine/APU—Structures),’’ dated January 15, 2007; and Section 05– 10–17, ‘‘Structurally Significant Items (SSIs),’’ dated January 15, 2007; of the BAE Systems (Operations) Limited ATP AMM; which refer to additional chapters of the AMM. Those revised sections of the AMM include mandatory life limitations for the airframe and power plant/engine; and structural inspections of the fuselage, engine, horizontal stabilizer, and wing bottom surface. The revised sections also describe new inspections and compliance times for inspection and replacement actions. Accomplishment of those actions will prevent the onset of fatigue cracking of certain structural elements of the airplane. Accomplishing the actions specified in the service information is intended to adequately address the unsafe condition. The CAA mandated the service information and issued British airworthiness directive G–2005–0031, E:\FR\FM\24JYR1.SGM 24JYR1 Federal Register / Vol. 72, No. 141 / Tuesday, July 24, 2007 / Rules and Regulations dated October 20, 2005 (which supersedes British airworthiness directive G–2004–0020, dated August 25, 2004), to ensure the continued airworthiness of these airplanes in the United Kingdom. Clarification of Alternative Method of Compliance (AMOC) Paragraph We have revised this action to clarify the appropriate procedure for notifying the principal inspector before using any approved AMOC on any airplane to which the AMOC applies. FAA’s Determination and Requirements of This AD This airplane model is manufactured in the United Kingdom and is type certificated for operation in the United States under the provisions of section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the applicable bilateral airworthiness agreement. Pursuant to this bilateral airworthiness agreement, the CAA has kept the FAA informed of the situation described above. We have examined the CAA’s findings, evaluated all pertinent information, and determined that we need to issue an AD for products of this type design that are certificated for operation in the United States. This AD supersedes AD 2006–18–09 and retains the requirements of the existing AD. This AD also requires revising the ALS of the ICA to include new and revised inspections. 40231 Costs of Compliance None of the airplanes affected by this action are on the U.S. Register. All airplanes affected by this AD are currently operated by non-U.S. operators under foreign registry; therefore, they are not directly affected by this AD action. However, we consider this AD necessary to ensure that the unsafe condition is addressed if any affected airplane is imported and placed on the U.S. Register in the future. The following table provides the estimated costs to comply with this AD for any affected airplane that might be imported and placed on the U.S. Register in the future. ESTIMATED COSTS Action Work hours Average labor rate per hour Cost per airplane ALS Revisions ....................................................................................................................................... 1 $80 $80 pwalker on PROD1PC71 with RULES FAA’s Determination of the Effective Date No airplane affected by this AD is currently on the U.S. Register. Therefore, providing notice and opportunity for public comment is unnecessary before this AD is issued, and this AD may be made effective in less than 30 days after it is published in the Federal Register. Comments Invited This AD is a final rule that involves requirements that affect flight safety and was not preceded by notice and an opportunity for public comment; however, we invite you to submit any relevant written data, views, or arguments regarding this AD. Send your comments to an address listed in the ADDRESSES section. Include ‘‘Docket No. FAA–2007–28747; Directorate Identifier 2006–NM–275–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the AD that might suggest a need to modify it. We will post all comments we receive, without change, to http:// dms.dot.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this AD. Using the search function of that Web site, anyone can find and read the comments in any of our dockets, including the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). VerDate Aug<31>2005 17:17 Jul 23, 2007 Jkt 211001 You may review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78), or you may visit http://dms.dot.gov. that is likely to exist or develop on products identified in this rulemaking action. Examining the Docket 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 the regulation: 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. See the ADDRESSES section for a location to examine the regulatory evaluation. You may examine the AD docket on the Internet at http://dms.dot.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 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 the Docket Management System receives them. 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 PO 00000 Frm 00017 Fmt 4700 Sfmt 4700 Regulatory Findings 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, I E:\FR\FM\24JYR1.SGM 24JYR1 40232 Federal Register / Vol. 72, No. 141 / Tuesday, July 24, 2007 / Rules and Regulations Restatement of Requirements of AD 2006– 18–09 the FAA amends 14 CFR part 39 as follows: Airworthiness Limitations Revision Specified in AD 2000–26–10 PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 by removing amendment 39–14748 (71 FR 52418, September 6, 2006) and by adding the following new airworthiness directive (AD): I 2007–15–08 BAE Systems (Operations) Limited (Formerly British Aerospace Regional Aircraft): Amendment 39– 15137. Docket No. FAA–2007–28747; Directorate Identifier 2006–NM–275–AD. Effective Date (a) This AD becomes effective August 8, 2007. Affected ADs (b) This AD supersedes AD 2006–18–09. Applicability (c) This AD applies to all BAE Systems (Operations) Limited Model ATP airplanes, certificated in any category. Note 1: This AD requires revisions to certain operator maintenance documents to include new and revised inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (m) of this AD. The request should include a description of changes to the required inspections that will ensure the continued damage tolerance of the affected structure. The FAA has provided guidance for this determination in Advisory Circular (AC) 25– 1529. Unsafe Condition pwalker on PROD1PC71 with RULES (d) This AD results from the determination that additional and revised inspections of the fuselage are needed. We are issuing this AD to detect and correct fatigue cracking of certain structural elements, which could result in reduced structural integrity of the airplane and consequent rapid decompression of the airplane. 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. VerDate Aug<31>2005 17:17 Jul 23, 2007 Jkt 211001 (f) Within 30 days after February 7, 2001 (the effective date of AD 2000–26–10, amendment 39–12060, which was superseded by AD 2005–19–03), revise the Airworthiness Limitations section (ALS) of the Instructions for Continued Airworthiness according to a method approved by the Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA. One approved method is by incorporating Section 05–00–00, dated August 15, 1997, of the British Aerospace ATP Aircraft Maintenance Manual (AMM), dated October 15, 1999, into the ALS. This section references other chapters of the AMM. The applicable revision level of the referenced chapters is that in effect on February 7, 2001. Doing the revision specified in paragraph (g) of this AD replaces Chapters 27, 32, 53, and 54 listed in Section 05–10–11 and Chapters 52, 53, 54, 55, and 57 listed in Section 05–10–17 that are in effect on February 7, 2001, with Chapters 27, 32, 53, and 54 listed in Section 05–10– 11, ‘‘Mandatory Life Limitations (Airframe)’’; and Chapters 52, 53, 54, 55, and 57 listed in Section 05–10–17, ‘‘Structurally Significant Items (SSIs)’’; both dated July 15, 2004; of the British Aerospace ATP AMM. Doing the revision specified in paragraph (k) of this AD replaces Sections 05–10–12, 05–10–15, and 05–10–17 with the corresponding sections specified in paragraph (k) of this AD. Airworthiness Limitations Specified in AD 2005–19–03 (g) Within 30 days after September 28, 2005 (the effective date of AD 2005–19–03, amendment 39–14268, which was superseded by AD 2006–18–09), revise the ALS of the Instructions for Continued Airworthiness according to a method approved by the Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA. One approved method is by incorporating the tasks for Chapters 27, 32, 53, and 54 listed in Section 05–10–11, ‘‘Mandatory Life Limitations (Airframe)’’; and the tasks for Chapters 52, 53, 54, 55, and 57 listed in Section 05–10–17, ‘‘Structurally Significant Items (SSIs)’’; both dated July 15, 2004; of the British Aerospace ATP AMM; into the ALS. These chapters replace the corresponding chapters in Section 05–00–00, dated August 15, 1997, of the British Aerospace ATP AMM as specified in paragraph (f) of this AD. Doing the revision specified in paragraph (h) of this AD replaces certain Chapter 52 and 53 tasks listed in Section 05–10–17, ‘‘Structurally Significant Items (SSIs),’’ dated July 15, 2004, of the British Aerospace ATP AMM, with the corresponding Chapter 52 and 53 tasks listed in BAE Systems (Operations) Limited Service Bulletin ATP–51–002, dated December 20, 2005. Doing the revision specified in paragraph (k) of this AD replaces Chapters 52, 53, 54, 55, and 57 listed in Section 05– 10–17 with the corresponding Section 05– 10–17 specified in paragraph (k) of this AD. PO 00000 Frm 00018 Fmt 4700 Sfmt 4700 New and Revised Airworthiness Limitations in AD 2006–18–09 (h) Within 30 days after September 21, 2006 (the effective date of AD 2006–18–09), revise the ALS of the Instructions for Continued Airworthiness by incorporating the new and revised tasks for Chapters 52 and 53 as specified in BAE Systems (Operations) Limited Service Bulletin ATP– 51–002, dated December 20, 2005, into the ALS. The revised Chapter 52 and 53 tasks replace the corresponding Chapter 52 and 53 tasks in Section 05–10–17, ‘‘Structurally Significant Items (SSIs),’’ dated July 15, 2004, of the British Aerospace ATP AMM, as specified in paragraph (g) of this AD. (i) Except as provided by paragraph (m) of this AD: After the actions specified in paragraphs (f), (g), and (h) of this AD have been accomplished, no alternative inspections or inspection intervals may be approved for the structural elements specified in the documents listed in paragraphs (f), (g), and (h) of this AD. No Reporting Required (j) Although BAE Systems (Operations) Limited Service Bulletin ATP–51–002, dated December 20, 2005, specifies to submit certain information to the manufacturer, this AD does not include that requirement. New Requirements of This AD Revised Limitations (k) Within 30 days after the effective date of this AD, revise the ALS of the Instructions for Continued Airworthiness according to a method approved by the Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA. One approved method is by incorporating Section 05–10– 12, ‘‘Mandatory Life Limitations (Airframe— Structures),’’ dated January 15, 2007; Section 05–10–15, ‘‘Mandatory Life Limitations (Powerplant/Engine/APU—Structures),’’ dated January 15, 2007; and Section 05–10– 17, ‘‘Structurally Significant Items (SSIs),’’ dated January 15, 2007; of the BAE Systems (Operations) Limited ATP AMM; into the ALS. The revised sections replace the corresponding sections specified in paragraphs (f) and (g) of this AD. (l) Except as provided by paragraph (m) of this AD: After the action specified in paragraph (k) of this AD has been accomplished, no alternative inspections or inspection intervals may be approved for the structural elements specified in the documents listed in paragraph (k) of this AD. Alternative Methods of Compliance (AMOCs) (m)(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) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. 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. E:\FR\FM\24JYR1.SGM 24JYR1 Federal Register / Vol. 72, No. 141 / Tuesday, July 24, 2007 / Rules and Regulations Related Information (n) British airworthiness directive G–2005– 0031, dated October 20, 2005, and European Aviation Safety Agency (EASA) airworthiness directive 2006–0090, dated April 20, 2006, also address the subject of this AD. Material Incorporated by Reference (o) You must use BAE Systems (Operations) Limited Service Bulletin ATP– 51–002, dated December 20, 2005, to perform the actions that are required by this AD, unless the AD specifies otherwise. On September 21, 2006 (71 FR 52418, September 6, 2006), the Director of the Federal Register approved the incorporation by reference of this document. Contact British Aerospace Regional Aircraft American Support, 13850 Mclearen Road, Herndon, Virginia 20171, for a copy of this service information. 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/ cfr/ibr-locations.html. Issued in Renton, Washington, on July 15, 2007. Stephen P. Boyd, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–14134 Filed 7–23–07; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–27431 Directorate Identifier 2007;–016–AD; Amendment 39– 15132; AD 2007–15–03] RIN 2120–AA64 Airworthiness Directives; Stemme GmbH & Co. KG Model S10–V and S10-VT Powered Sailplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. pwalker on PROD1PC71 with RULES AGENCY: SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued 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: Service experience showed that the connection screw of the propeller blade follower type 10AP–VM may break and the main part of the blade follower can be lost VerDate Aug<31>2005 18:16 Jul 23, 2007 Jkt 211001 in flight. This condition, if not corrected, could lead to high vibration during powered flight and consequently result in decreased control of the aircraft. We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective August 28, 2007. On August 28, 2007, the Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD. ADDRESSES: You may examine the AD docket on the Internet at http:// dms.dot.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 20590. FOR FURTHER INFORMATION CONTACT: Greg Davison, Glider Program Manager, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4130; fax: (816) 329–4090. 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 April 23, 2007 (72 FR 20072). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI states that: Service experience showed that the connection screw of the propeller blade follower type 10AP–VM may break and the main part of the blade follower can be lost in flight. This condition, if not corrected, could lead to high vibration during powered flight and consequently result in decreased control of the aircraft. Stemme has developed a new blade follower, Model 10AP–VP, which is reinforced on the shaft and has an Allen head screw installed instead of a slotted screw. For the reason stated above, this Emergency Airworthiness Directive (EAD) requires the replacement of the blade follower type 10AP–VM with the new type 10AP–VP. This EAD has been revised to correct the TCDS reference and the applicability statement. No separate TC was issued for the affected propellers. These propellers are part of the aircraft type design. Paragraph (4) of the ‘‘Compliance’’ section of this EAD has been corrected. 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. PO 00000 Frm 00019 Fmt 4700 Sfmt 4700 40233 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 FAA policies. Any such differences are highlighted in a Note within the AD. Costs of Compliance We estimate that this AD will affect 53 products of U.S. registry. We also estimate that it will take about 3 workhours per product to comply with basic requirements of this AD. The average labor rate is $80 per work-hour. Required parts will cost about $117 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 $18,921 or $357 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. E:\FR\FM\24JYR1.SGM 24JYR1

Agencies

[Federal Register Volume 72, Number 141 (Tuesday, July 24, 2007)]
[Rules and Regulations]
[Pages 40230-40233]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-14134]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-28747; Directorate Identifier 2006-NM-275-AD; 
Amendment 39-15137; AD 2007-15-08]
RIN 2120-AA64


Airworthiness Directives; BAE Systems (Operations) Limited Model 
ATP Airplanes

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

ACTION: Final rule; request for comments.

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

SUMMARY: The FAA is superseding an existing airworthiness directive 
(AD), which applies to all BAE Systems (Operations) Limited Model ATP 
airplanes. The existing AD currently requires revising the 
Airworthiness Limitations Section (ALS) of the Instructions for 
Continued Airworthiness (ICA) to incorporate life limits for certain 
items and inspections to detect fatigue cracking in certain structures; 
to incorporate new inspections to detect fatigue cracking of certain 
significant structural items (SSIs); and to revise life limits for 
certain equipment and various components. This new AD requires revising 
the ALS of the ICA to include revised requirements. This AD results 
from the determination that additional and revised inspections of the 
fuselage are needed. We are issuing this AD to detect and correct 
fatigue cracking of certain structural elements, which could result in 
reduced structural integrity of the airplane and consequent rapid 
decompression of the airplane.

DATES: This AD becomes effective August 8, 2007.
    On September 21, 2006 (71 FR 52418, September 6, 2006), the 
Director of the Federal Register approved the incorporation by 
reference of BAE Systems (Operations) Limited Service Bulletin ATP-51-
002, dated December 20, 2005.
    We must receive comments on this AD by September 24, 2007.

ADDRESSES: Use one of the following addresses to submit comments on 
this AD.
     DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to http://
www.regulations.gov and follow the instructions for sending your 
comments electronically.
     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.
     Fax: (202) 493-2251.
     Hand Delivery: Room W12-140 on the ground floor of the 
West Building, 1200 New Jersey Avenue, SE., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    Contact British Aerospace Regional Aircraft American Support, 13850 
Mclearen Road, Herndon, Virginia 20171, for service information 
identified in this AD.

FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, 
International Branch, ANM-116, FAA, Transport Airplane Directorate, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
227-1175; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Discussion

    On August 23, 2006, we issued AD 2006-18-09, amendment 39-14748 (71 
FR 52418, September 6, 2006), for all BAE Systems (Operations) Limited 
Model ATP airplanes. That AD requires revising the Airworthiness 
Limitations Section (ALS) of the Instructions for Continued 
Airworthiness (ICA) to incorporate life limits for certain items and 
inspections to detect fatigue cracking in certain structures; to 
incorporate new inspections to detect fatigue cracking of certain 
significant structural items (SSIs); and to revise life limits for 
certain equipment and various components. That AD resulted from 
manufacturer review of fatigue test results that identified additional 
and revised inspections of the fuselage that are necessary in order to 
ensure the continued structural integrity of the airplane. We issued 
that AD to detect and correct fatigue cracking of certain structural 
elements, which could result in reduced structural integrity of the 
airplane and consequent rapid decompression of the airplane. The 
actions specified in that AD correspond to British airworthiness 
directive G-2004-0020, dated August 25, 2004, and European Aviation 
Safety Agency (EASA) airworthiness directive 2006-0090, dated April 20, 
2006.

Actions Since Existing AD Was Issued

    Since we issued AD 2006-18-09, the Civil Aviation Authority (CAA), 
which is the airworthiness authority for the United Kingdom, notified 
us that an unsafe condition may exist on all BAE Systems (Operations) 
Limited Model ATP airplanes. The CAA advises that the certification 
requirements for damage tolerant and safe life structure are given in 
Chapter 5 of the BAE ATP aircraft maintenance manual (AMM). The CAA has 
identified the need to revise these requirements to add and change 
inspections of the fuselage. The revisions primarily recognize the 
introduction of Modification JDM60138N, which installs an energy-
absorbing stop to aircraft fitted with the large freight door. Failure 
to adopt the latest revision of Chapter 5 of the AMM could result in 
fatigue cracking of certain structural elements remaining undetected, 
which could result in reduced structural integrity of the airplane and 
consequent rapid decompression of the airplane.

Relevant Service Information

    BAE Systems (Operations) Limited has issued revisions to Section 
05-10-12, ``Mandatory Life Limitations (Airframe--Structures),'' dated 
January 15, 2007; Section 05-10-15, ``Mandatory Life Limitations 
(Powerplant/Engine/APU--Structures),'' dated January 15, 2007; and 
Section 05-10-17, ``Structurally Significant Items (SSIs),'' dated 
January 15, 2007; of the BAE Systems (Operations) Limited ATP AMM; 
which refer to additional chapters of the AMM. Those revised sections 
of the AMM include mandatory life limitations for the airframe and 
power plant/engine; and structural inspections of the fuselage, engine, 
horizontal stabilizer, and wing bottom surface. The revised sections 
also describe new inspections and compliance times for inspection and 
replacement actions. Accomplishment of those actions will prevent the 
onset of fatigue cracking of certain structural elements of the 
airplane.
    Accomplishing the actions specified in the service information is 
intended to adequately address the unsafe condition. The CAA mandated 
the service information and issued British airworthiness directive G-
2005-0031,

[[Page 40231]]

dated October 20, 2005 (which supersedes British airworthiness 
directive G-2004-0020, dated August 25, 2004), to ensure the continued 
airworthiness of these airplanes in the United Kingdom.

Clarification of Alternative Method of Compliance (AMOC) Paragraph

    We have revised this action to clarify the appropriate procedure 
for notifying the principal inspector before using any approved AMOC on 
any airplane to which the AMOC applies.

FAA's Determination and Requirements of This AD

    This airplane model is manufactured in the United Kingdom and is 
type certificated for operation in the United States under the 
provisions of section 21.29 of the Federal Aviation Regulations (14 CFR 
21.29) and the applicable bilateral airworthiness agreement. Pursuant 
to this bilateral airworthiness agreement, the CAA has kept the FAA 
informed of the situation described above. We have examined the CAA's 
findings, evaluated all pertinent information, and determined that we 
need to issue an AD for products of this type design that are 
certificated for operation in the United States.
    This AD supersedes AD 2006-18-09 and retains the requirements of 
the existing AD. This AD also requires revising the ALS of the ICA to 
include new and revised inspections.

Costs of Compliance

    None of the airplanes affected by this action are on the U.S. 
Register. All airplanes affected by this AD are currently operated by 
non-U.S. operators under foreign registry; therefore, they are not 
directly affected by this AD action. However, we consider this AD 
necessary to ensure that the unsafe condition is addressed if any 
affected airplane is imported and placed on the U.S. Register in the 
future.
    The following table provides the estimated costs to comply with 
this AD for any affected airplane that might be imported and placed on 
the U.S. Register in the future.

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                       Work     Average labor       Cost per
                               Action                                 hours     rate per hour       airplane
----------------------------------------------------------------------------------------------------------------
ALS Revisions......................................................       1               $80               $80
----------------------------------------------------------------------------------------------------------------

FAA's Determination of the Effective Date

    No airplane affected by this AD is currently on the U.S. Register. 
Therefore, providing notice and opportunity for public comment is 
unnecessary before this AD is issued, and this AD may be made effective 
in less than 30 days after it is published in the Federal Register.

Comments Invited

    This AD is a final rule that involves requirements that affect 
flight safety and was not preceded by notice and an opportunity for 
public comment; however, we invite you to submit any relevant written 
data, views, or arguments regarding this AD. Send your comments to an 
address listed in the ADDRESSES section. Include ``Docket No. FAA-2007-
28747; Directorate Identifier 2006-NM-275-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the AD that might 
suggest a need to modify it.
    We will post all comments we receive, without change, to http://
dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this AD. Using the search function of that Web 
site, anyone can find and read the comments in any of our dockets, 
including the name of the individual who sent the comment (or signed 
the comment on behalf of an association, business, labor union, etc.). 
You may review the DOT's complete Privacy Act Statement in the Federal 
Register published on April 11, 2000 (65 FR 19477-78), or you may visit 
http://dms.dot.gov.

Examining the Docket

    You may examine the AD docket on the Internet at http://
dms.dot.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 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 the Docket Management System receives them.

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 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 the regulation:
    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. 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,

[[Page 40232]]

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 
removing amendment 39-14748 (71 FR 52418, September 6, 2006) and by 
adding the following new airworthiness directive (AD):

2007-15-08 BAE Systems (Operations) Limited (Formerly British 
Aerospace Regional Aircraft): Amendment 39-15137. Docket No. FAA-
2007-28747; Directorate Identifier 2006-NM-275-AD.

Effective Date

    (a) This AD becomes effective August 8, 2007.

Affected ADs

    (b) This AD supersedes AD 2006-18-09.

Applicability

    (c) This AD applies to all BAE Systems (Operations) Limited 
Model ATP airplanes, certificated in any category.

    Note 1: This AD requires revisions to certain operator 
maintenance documents to include new and revised inspections. 
Compliance with these inspections is required by 14 CFR 91.403(c). 
For airplanes that have been previously modified, altered, or 
repaired in the areas addressed by these inspections, the operator 
may not be able to accomplish the inspections described in the 
revisions. In this situation, to comply with 14 CFR 91.403(c), the 
operator must request approval for an alternative method of 
compliance according to paragraph (m) of this AD. The request should 
include a description of changes to the required inspections that 
will ensure the continued damage tolerance of the affected 
structure. The FAA has provided guidance for this determination in 
Advisory Circular (AC) 25-1529.

Unsafe Condition

    (d) This AD results from the determination that additional and 
revised inspections of the fuselage are needed. We are issuing this 
AD to detect and correct fatigue cracking of certain structural 
elements, which could result in reduced structural integrity of the 
airplane and consequent rapid decompression of the airplane.

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.

Restatement of Requirements of AD 2006-18-09

Airworthiness Limitations Revision Specified in AD 2000-26-10

    (f) Within 30 days after February 7, 2001 (the effective date of 
AD 2000-26-10, amendment 39-12060, which was superseded by AD 2005-
19-03), revise the Airworthiness Limitations section (ALS) of the 
Instructions for Continued Airworthiness according to a method 
approved by the Manager, International Branch, ANM-116, Transport 
Airplane Directorate, FAA. One approved method is by incorporating 
Section 05-00-00, dated August 15, 1997, of the British Aerospace 
ATP Aircraft Maintenance Manual (AMM), dated October 15, 1999, into 
the ALS. This section references other chapters of the AMM. The 
applicable revision level of the referenced chapters is that in 
effect on February 7, 2001. Doing the revision specified in 
paragraph (g) of this AD replaces Chapters 27, 32, 53, and 54 listed 
in Section 05-10-11 and Chapters 52, 53, 54, 55, and 57 listed in 
Section 05-10-17 that are in effect on February 7, 2001, with 
Chapters 27, 32, 53, and 54 listed in Section 05-10-11, ``Mandatory 
Life Limitations (Airframe)''; and Chapters 52, 53, 54, 55, and 57 
listed in Section 05-10-17, ``Structurally Significant Items 
(SSIs)''; both dated July 15, 2004; of the British Aerospace ATP 
AMM. Doing the revision specified in paragraph (k) of this AD 
replaces Sections 05-10-12, 05-10-15, and 05-10-17 with the 
corresponding sections specified in paragraph (k) of this AD.

Airworthiness Limitations Specified in AD 2005-19-03

    (g) Within 30 days after September 28, 2005 (the effective date 
of AD 2005-19-03, amendment 39-14268, which was superseded by AD 
2006-18-09), revise the ALS of the Instructions for Continued 
Airworthiness according to a method approved by the Manager, 
International Branch, ANM-116, Transport Airplane Directorate, FAA. 
One approved method is by incorporating the tasks for Chapters 27, 
32, 53, and 54 listed in Section 05-10-11, ``Mandatory Life 
Limitations (Airframe)''; and the tasks for Chapters 52, 53, 54, 55, 
and 57 listed in Section 05-10-17, ``Structurally Significant Items 
(SSIs)''; both dated July 15, 2004; of the British Aerospace ATP 
AMM; into the ALS. These chapters replace the corresponding chapters 
in Section 05-00-00, dated August 15, 1997, of the British Aerospace 
ATP AMM as specified in paragraph (f) of this AD. Doing the revision 
specified in paragraph (h) of this AD replaces certain Chapter 52 
and 53 tasks listed in Section 05-10-17, ``Structurally Significant 
Items (SSIs),'' dated July 15, 2004, of the British Aerospace ATP 
AMM, with the corresponding Chapter 52 and 53 tasks listed in BAE 
Systems (Operations) Limited Service Bulletin ATP-51-002, dated 
December 20, 2005. Doing the revision specified in paragraph (k) of 
this AD replaces Chapters 52, 53, 54, 55, and 57 listed in Section 
05-10-17 with the corresponding Section 05-10-17 specified in 
paragraph (k) of this AD.

New and Revised Airworthiness Limitations in AD 2006-18-09

    (h) Within 30 days after September 21, 2006 (the effective date 
of AD 2006-18-09), revise the ALS of the Instructions for Continued 
Airworthiness by incorporating the new and revised tasks for 
Chapters 52 and 53 as specified in BAE Systems (Operations) Limited 
Service Bulletin ATP-51-002, dated December 20, 2005, into the ALS. 
The revised Chapter 52 and 53 tasks replace the corresponding 
Chapter 52 and 53 tasks in Section 05-10-17, ``Structurally 
Significant Items (SSIs),'' dated July 15, 2004, of the British 
Aerospace ATP AMM, as specified in paragraph (g) of this AD.
    (i) Except as provided by paragraph (m) of this AD: After the 
actions specified in paragraphs (f), (g), and (h) of this AD have 
been accomplished, no alternative inspections or inspection 
intervals may be approved for the structural elements specified in 
the documents listed in paragraphs (f), (g), and (h) of this AD.

No Reporting Required

    (j) Although BAE Systems (Operations) Limited Service Bulletin 
ATP-51-002, dated December 20, 2005, specifies to submit certain 
information to the manufacturer, this AD does not include that 
requirement.

New Requirements of This AD

Revised Limitations

    (k) Within 30 days after the effective date of this AD, revise 
the ALS of the Instructions for Continued Airworthiness according to 
a method approved by the Manager, International Branch, ANM-116, 
Transport Airplane Directorate, FAA. One approved method is by 
incorporating Section 05-10-12, ``Mandatory Life Limitations 
(Airframe--Structures),'' dated January 15, 2007; Section 05-10-15, 
``Mandatory Life Limitations (Powerplant/Engine/APU--Structures),'' 
dated January 15, 2007; and Section 05-10-17, ``Structurally 
Significant Items (SSIs),'' dated January 15, 2007; of the BAE 
Systems (Operations) Limited ATP AMM; into the ALS. The revised 
sections replace the corresponding sections specified in paragraphs 
(f) and (g) of this AD.
    (l) Except as provided by paragraph (m) of this AD: After the 
action specified in paragraph (k) of this AD has been accomplished, 
no alternative inspections or inspection intervals may be approved 
for the structural elements specified in the documents listed in 
paragraph (k) of this AD.

Alternative Methods of Compliance (AMOCs)

    (m)(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) To request a different method of compliance or a different 
compliance time for this AD, follow the procedures in 14 CFR 39.19. 
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.

[[Page 40233]]

Related Information

    (n) British airworthiness directive G-2005-0031, dated October 
20, 2005, and European Aviation Safety Agency (EASA) airworthiness 
directive 2006-0090, dated April 20, 2006, also address the subject 
of this AD.

Material Incorporated by Reference

    (o) You must use BAE Systems (Operations) Limited Service 
Bulletin ATP-51-002, dated December 20, 2005, to perform the actions 
that are required by this AD, unless the AD specifies otherwise. On 
September 21, 2006 (71 FR 52418, September 6, 2006), the Director of 
the Federal Register approved the incorporation by reference of this 
document. Contact British Aerospace Regional Aircraft American 
Support, 13850 Mclearen Road, Herndon, Virginia 20171, for a copy of 
this service information. 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/cfr/ibr-locations.html.

    Issued in Renton, Washington, on July 15, 2007.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E7-14134 Filed 7-23-07; 8:45 am]
BILLING CODE 4910-13-P