Airworthiness Directives; Rolls-Royce plc (RR) RB211 Trent 500, 700, and 800 Series Turbofan Engines, 52201-52203 [E8-20212]

Download as PDF Federal Register / Vol. 73, No. 175 / Tuesday, September 9, 2008 / Rules and Regulations § 439.51 Probation of accreditation. Upon a determination by the Administrator, a laboratory will be placed on probation for the following reasons: (a) If the laboratory fails to complete more than one interlaboratory accreditation maintenance check sample analysis as required by § 439.20(d) of this part within 12 consecutive months, unless written permission is granted by the Administrator. (b) If the laboratory fails to meet any of the criteria set forth in §§ 439.20(d) and 439.20(h) of this part. § 439.52 Suspension of accreditation. The accreditation of a laboratory will be suspended if the laboratory or any individual or entity responsibly connected with the laboratory is indicted or has charges on information brought against them in a Federal or State court for any of the following violations of law: (a) Any felony. (b) Any misdemeanor based upon acquiring, handling, or distributing of unwholesome, misbranded, or deceptively packaged food or upon fraud in connection with transactions in food. (c) Any misdemeanor based upon a false statement to any governmental agency. (d) Any misdemeanor based upon the offering, giving or receiving of a bribe or unlawful gratuity. yshivers on PROD1PC62 with RULES § 439.53 Revocation of accreditation. The accreditation of a laboratory will be revoked for the following reasons: (a) An accredited laboratory that is accredited to perform analysis under §§ 439.5, 439.10 and 439.20 of this part will have its accreditation revoked for failure to meet any of the requirements of § 439.20 of this part, except for the following circumstances. If the accredited laboratory fails to meet any of the criteria set forth in §§ 439.20(d) and 439.20(h) of this part and it has not failed during the 12 months preceding its failure to meet the criteria, it shall be placed on probation, but if it has failed at any time during those 12 months, its accreditation will be revoked. (b) An accredited laboratory will have its accreditation revoked if the Administrator determines that the laboratory or any responsibly connected individual or any agent or employee has: (1) Altered any official sample or analytical finding; or (2) Substituted any analytical result from any other laboratory and represented the result as its own. (c) An accredited laboratory will have its accreditation revoked if the VerDate Aug<31>2005 15:16 Sep 08, 2008 Jkt 214001 laboratory or any individual or entity responsibly connected with the laboratory is convicted in a Federal or State court of any of the following violations of law: (a) Any felony. (b) Any misdemeanor based upon acquiring, handling, or distributing of unwholesome, misbranded, or deceptively packaged food or upon fraud in connection with transactions in food. (c) Any misdemeanor based upon a false statement to any governmental agency. (d) Any misdemeanor based upon the offering, giving or receiving of a bribe or unlawful gratuity. § 439.60 Notification and hearings. Accreditation of any laboratory will be refused, suspended, or revoked under the conditions previously described in this Part 439. The owner or operator of the laboratory will be sent written notice of the refusal, suspension, or revocation of accreditation by the Administrator. In such cases, the laboratory owner or operator will be provided an opportunity to present, within 30 days of the date of the notification, a statement challenging the merits or validity of such action and to request an oral hearing with respect to the denial, suspension, or revocation decision. An oral hearing will be granted if there is any dispute of material fact joined in such responsive statement. The proceeding will be conducted thereafter in accordance with the applicable rules of practice, which will be adopted for the proceeding. Any such refusal, suspension, or revocation will be effective upon the receipt by the laboratory of the notification and will continue in effect until final determination of the matter by the Administrator. Done in Washington, DC, on August 27, 2008. Alfred V. Almanza, Administrator. [FR Doc. E8–20582 Filed 9–8–08; 8:45 am] BILLING CODE 3410–DM–P PO 00000 52201 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–28059; Directorate Identifier 2007–NE–13–AD; Amendment 39– 15665; AD 2008–18–08] RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc (RR) RB211 Trent 500, 700, and 800 Series Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule. 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: This action is necessary following the discovery of IP Compressor Rotor rear balance land cracking on an in-service Trent 800 engine. Stress analysis of the damaged rotor has shown a possible threat to the rotor integrity, the cracking therefore presents a potential unsafe condition. We are issuing this AD to detect cracking on the intermediate pressure (IP) compressor rotor rear balance land. IP compressor rotor rear balance land cracking can lead to uncontained failure of the rotor and damage to the airplane. DATES: This AD becomes effective October 14, 2008. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of October 14, 2008. ADDRESSES: The Docket Operations office is located at Docket Management Facility, U.S. Department of Transportation, 1200 New Jersey Avenue SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. FOR FURTHER INFORMATION CONTACT: James Lawrence, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: james.lawrence@faa.gov; telephone (781) 238–7176; fax (781) 238–7199. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would Frm 00031 Fmt 4700 Sfmt 4700 E:\FR\FM\09SER1.SGM 09SER1 52202 Federal Register / Vol. 73, No. 175 / Tuesday, September 9, 2008 / Rules and Regulations apply to the specified products. That NPRM was published in the Federal Register on October 15, 2007 (72 FR 58267). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI states that: This Airworthiness Directive requires inspections for cracks in the rear balance land of the IP Compressor Rotor. The inspections comprise an on-wing one-off inspection by borescope for RR Trent 800 engines which must be completed within a short timescale, and in-shop inspections to be completed at each opportunity for RR Trent 500, 700 and 800 engines (the in-shop inspection may be carried out in lieu of the on-wing inspection for the Trent 800 engines if it is accomplished within the timescale applicable to the on-wing inspection). This action is necessary following the discovery of IP Compressor Rotor rear balance land cracking on an in-service Trent 800 engine. Stress analysis of the damaged rotor has shown a possible threat to the rotor integrity, the cracking therefore presents a potential unsafe condition. The cause of the cracking is currently not fully understood but evidence suggests it relates to an unusual balance weight condition. You may obtain further information by examining the EASA AD in the AD docket. Comments We gave the public the opportunity to participate in developing this AD. We considered the comment received. The commenter supports the NPRM. Editorial Addition of a New Revision to Alert Service Bulletin RB.211–72– AF260 We received Alert Service Bulletin RB.211–72–AF260, Revision 2, dated July 4, 2007, after we issued the NPRM. We reviewed Revision 2 and determined that no changes to the NPRM were necessary. We updated the revision number from Revision 1 to Revision 2 in this AD. Conclusion We reviewed the available data, including the comment received, and determined that air safety and the public interest require adopting the AD as proposed. yshivers on PROD1PC62 with RULES Costs of Compliance We estimate that this AD will affect about 110 engines installed on airplanes of U.S. registry. We also estimate that it will take about 3.5 work-hours per engine to perform the proposed actions and that the average labor rate is $80 per work-hour. Based on these figures, we estimate the total cost of the proposed AD to U.S. operators to be $30,800. Our cost estimate is exclusive of possible warranty coverage. VerDate Aug<31>2005 15:16 Sep 08, 2008 Jkt 214001 Authority for This Rulemaking List of Subjects in 14 CFR Part 39 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. Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. 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 https:// 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 this AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. PO 00000 Frm 00032 Fmt 4700 Sfmt 4700 Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: I PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: I 2008–18–08 Rolls-Royce plc: Amendment 39–15665. Docket No. FAA–2007–28059; Directorate Identifier 2007–NE–13–AD. Effective Date (a) This airworthiness directive (AD) becomes effective October 14, 2008. Affected ADs (b) None. Applicability (c) This AD applies to Rolls-Royce plc RB211 Trent 553–61, 553A2–61, 556–61, 556A2–61, 556B–61, 560–61, 560A2–61, 768–60, 772–60, 772B–60, 875–17, 877–17, 884–17, 884B–17, 892–17, 892B–17, and 895–17 turbofan engines. These engines are installed on, but not limited to, Airbus A330, A340–500, A340–600, and Boeing 777 series airplanes. Reason (d) This action is necessary following the discovery of IP Compressor Rotor rear balance land cracking on an in-service Trent 800 engine. Stress analysis of the damaged rotor has shown a possible threat to the rotor integrity, the cracking therefore presents a potential unsafe condition. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI. We are issuing this AD to detect cracking on the intermediate pressure (IP) compressor rotor rear balance land. IP compressor rotor rear balance land cracking can lead to uncontained failure of the rotor and damage to the airplane. Actions and Compliance (e) Unless already done, do the following actions: Inspection—On-Wing (1) Applicable to RR Trent 800 engines not previously inspected per Rolls-Royce RB211 Propulsion System Alert Non Modification Service Bulletin RB.211–72–AF260, Revision 2, dated July 4, 2007; or earlier issue: Within 400 flight cycles of the Effective Date of this AD inspect the IP Compressor rotor rear E:\FR\FM\09SER1.SGM 09SER1 Federal Register / Vol. 73, No. 175 / Tuesday, September 9, 2008 / Rules and Regulations balance land for cracks in accordance with Rolls-Royce RB211 Propulsion System Alert Non Modification Service Bulletin RB.211– 72–AF313, dated February 22, 2007 section 3 Accomplishment Instructions. Engines on which cracking is found should be rejected from service. Inspection—In-Shop (2) Applicable to RR Trent 500, 700 and 800 engines at each shop visit in which the engine is sufficiently disassembled to access the IP Compressor Module rear face: Inspect the IP Compressor rotor rear balance land for cracks in accordance with Rolls-Royce RB211 Propulsion System Alert Non Modification Service Bulletin RB.211–72–AF260, Revision 2, dated July 4, 2007; or earlier issue section 3 Accomplishment Instructions. Other FAA AD Provisions (f) Alternative Methods of Compliance (AMOCs): The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (g) Refer to EASA Airworthiness Directive 2007–0052, dated February 23, 2007, for related information. (h) Contact James Lawrence, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: james.lawrence@faa.gov; telephone (781) 238–7176; fax (781) 238– 7199, for more information about this AD. Material Incorporated by Reference (i) You must use the service information specified in Table 1 of this AD to do the 52203 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 Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; telephone: 44 (0) 1332–242424; fax: 44 (0) 1332–249936. (3) You may review copies at the FAA, New England Region, 12 New England Executive Park, Burlington, MA; 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: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. TABLE 1—MATERIAL INCORPORATED BY REFERENCE Alert Service Bulletin No. RB.211–72–AF260; RB.211–72–AF260; RB.211–72–AF260; RB.211–72–AF313; Total Total Total Total pages—11 pages—11 pages—11 pages—11 Page .................................. .................................. .................................. .................................. Issued in Burlington, Massachusetts, on August 25, 2008. Mark A. Rumizen, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8–20212 Filed 9–8–08; 8:45 am] ALL ALL ALL ALL ....................................... ....................................... ....................................... ....................................... This AD is effective September 24, 2008. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of September 24, 2008. We must receive comments on this AD by November 10, 2008. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://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. For service information identified in this AD, contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and DATES: DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2008–0946; Directorate Identifier 2008–NM–147–AD; Amendment 39–15667; AD 2008–18–10] RIN 2120–AA64 Airworthiness Directives; McDonnell Douglas Model MD–90–30 Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. yshivers on PROD1PC62 with RULES AGENCY: SUMMARY: We are adopting a new airworthiness directive (AD) for certain McDonnell Douglas Model MD–90–30 airplanes. This AD requires a detailed inspection for certain defects of the upper fasteners of the aft mount support fitting of the left and right engines and corrective actions if necessary. This AD results from reports of loose, cracked, or missing fasteners in the aft mount support fitting of the left and right engines. We are issuing this AD to 15:16 Sep 08, 2008 Jkt 214001 Original ................................. 1 ............................................ 2 ............................................ Original ................................. detect and correct loose, cracked, or missing fasteners in the engine aft support mount fitting, which could lead to separation of the support fitting from the pylon, which could result in separation of the engine from the airplane. BILLING CODE 4910–13–P VerDate Aug<31>2005 Revision PO 00000 Frm 00033 Fmt 4700 Sfmt 4700 Date October 17, 2006. January 17, 2007. July 4, 2007. February 22, 2007. Service Management, Dept. C1–L5A (D800–0024). Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone 800–647– 5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Roger Durbin, Aerospace Engineer, Airframe Branch, ANM–120L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California 90712–4137; telephone (562) 627–5233; fax (562) 627–5210. SUPPLEMENTARY INFORMATION: Discussion We have received reports of loose, cracked, or missing fasteners in the aft mount support fitting of the left and right engines on several McDonnell Douglas Model MD–90–30 airplanes. The airplanes had accumulated between 18,767 and 25,400 total flight hours and between 15,841 and 27,000 total flight cycles. A safety assessment of the missing fasteners has concluded that loose or discrepant fasteners in the top E:\FR\FM\09SER1.SGM 09SER1

Agencies

[Federal Register Volume 73, Number 175 (Tuesday, September 9, 2008)]
[Rules and Regulations]
[Pages 52201-52203]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-20212]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-28059; Directorate Identifier 2007-NE-13-AD; 
Amendment 39-15665; AD 2008-18-08]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc (RR) RB211 Trent 500, 
700, and 800 Series Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

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:

    This action is necessary following the discovery of IP 
Compressor Rotor rear balance land cracking on an in-service Trent 
800 engine. Stress analysis of the damaged rotor has shown a 
possible threat to the rotor integrity, the cracking therefore 
presents a potential unsafe condition.

We are issuing this AD to detect cracking on the intermediate pressure 
(IP) compressor rotor rear balance land. IP compressor rotor rear 
balance land cracking can lead to uncontained failure of the rotor and 
damage to the airplane.

DATES: This AD becomes effective October 14, 2008. The Director of the 
Federal Register approved the incorporation by reference of certain 
publications listed in this AD as of October 14, 2008.

ADDRESSES: The Docket Operations office is located at Docket Management 
Facility, U.S. Department of Transportation, 1200 New Jersey Avenue 
SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-
0001.

FOR FURTHER INFORMATION CONTACT: James Lawrence, Aerospace Engineer, 
Engine Certification Office, FAA, Engine and Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; e-mail: 
james.lawrence@faa.gov; telephone (781) 238-7176; fax (781) 238-7199.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an AD that would

[[Page 52202]]

apply to the specified products. That NPRM was published in the Federal 
Register on October 15, 2007 (72 FR 58267). That NPRM proposed to 
correct an unsafe condition for the specified products. The MCAI states 
that:

    This Airworthiness Directive requires inspections for cracks in 
the rear balance land of the IP Compressor Rotor. The inspections 
comprise an on-wing one-off inspection by borescope for RR Trent 800 
engines which must be completed within a short timescale, and in-
shop inspections to be completed at each opportunity for RR Trent 
500, 700 and 800 engines (the in-shop inspection may be carried out 
in lieu of the on-wing inspection for the Trent 800 engines if it is 
accomplished within the timescale applicable to the on-wing 
inspection). This action is necessary following the discovery of IP 
Compressor Rotor rear balance land cracking on an in-service Trent 
800 engine. Stress analysis of the damaged rotor has shown a 
possible threat to the rotor integrity, the cracking therefore 
presents a potential unsafe condition. The cause of the cracking is 
currently not fully understood but evidence suggests it relates to 
an unusual balance weight condition.

You may obtain further information by examining the EASA AD in the AD 
docket.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We considered the comment received. The commenter supports the 
NPRM.

Editorial Addition of a New Revision to Alert Service Bulletin RB.211-
72-AF260

    We received Alert Service Bulletin RB.211-72-AF260, Revision 2, 
dated July 4, 2007, after we issued the NPRM. We reviewed Revision 2 
and determined that no changes to the NPRM were necessary. We updated 
the revision number from Revision 1 to Revision 2 in this AD.

Conclusion

    We reviewed the available data, including the comment received, and 
determined that air safety and the public interest require adopting the 
AD as proposed.

Costs of Compliance

    We estimate that this AD will affect about 110 engines installed on 
airplanes of U.S. registry. We also estimate that it will take about 
3.5 work-hours per engine to perform the proposed actions and that the 
average labor rate is $80 per work-hour. Based on these figures, we 
estimate the total cost of the proposed AD to U.S. operators to be 
$30,800. Our cost estimate is exclusive of possible warranty coverage.

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 https://
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 this AD, the regulatory evaluation, 
any comments received, and other information. The street address for 
the Docket Operations office (telephone (800) 647-5527) is provided 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 adding the following new AD:

2008-18-08 Rolls-Royce plc: Amendment 39-15665. Docket No. FAA-2007-
28059; Directorate Identifier 2007-NE-13-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective October 
14, 2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Rolls-Royce plc RB211 Trent 553-61, 
553A2-61, 556-61, 556A2-61, 556B-61, 560-61, 560A2-61, 768-60, 772-
60, 772B-60, 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, and 
895-17 turbofan engines. These engines are installed on, but not 
limited to, Airbus A330, A340-500, A340-600, and Boeing 777 series 
airplanes.

Reason

    (d) This action is necessary following the discovery of IP 
Compressor Rotor rear balance land cracking on an in-service Trent 
800 engine. Stress analysis of the damaged rotor has shown a 
possible threat to the rotor integrity, the cracking therefore 
presents a potential unsafe condition. The proposed AD would require 
actions that are intended to address the unsafe condition described 
in the MCAI.
    We are issuing this AD to detect cracking on the intermediate 
pressure (IP) compressor rotor rear balance land. IP compressor 
rotor rear balance land cracking can lead to uncontained failure of 
the rotor and damage to the airplane.

Actions and Compliance

    (e) Unless already done, do the following actions:

Inspection--On-Wing

    (1) Applicable to RR Trent 800 engines not previously inspected 
per Rolls-Royce RB211 Propulsion System Alert Non Modification 
Service Bulletin RB.211-72-AF260, Revision 2, dated July 4, 2007; or 
earlier issue: Within 400 flight cycles of the Effective Date of 
this AD inspect the IP Compressor rotor rear

[[Page 52203]]

balance land for cracks in accordance with Rolls-Royce RB211 
Propulsion System Alert Non Modification Service Bulletin RB.211-72-
AF313, dated February 22, 2007 section 3 Accomplishment 
Instructions. Engines on which cracking is found should be rejected 
from service.

Inspection--In-Shop

    (2) Applicable to RR Trent 500, 700 and 800 engines at each shop 
visit in which the engine is sufficiently disassembled to access the 
IP Compressor Module rear face: Inspect the IP Compressor rotor rear 
balance land for cracks in accordance with Rolls-Royce RB211 
Propulsion System Alert Non Modification Service Bulletin RB.211-72-
AF260, Revision 2, dated July 4, 2007; or earlier issue section 3 
Accomplishment Instructions.

Other FAA AD Provisions

    (f) Alternative Methods of Compliance (AMOCs): The Manager, 
Engine Certification Office, FAA, has the authority to approve AMOCs 
for this AD, if requested using the procedures found in 14 CFR 
39.19.

Related Information

    (g) Refer to EASA Airworthiness Directive 2007-0052, dated 
February 23, 2007, for related information.
    (h) Contact James Lawrence, Aerospace Engineer, Engine 
Certification Office, FAA, Engine and Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; e-mail: 
james.lawrence@faa.gov; telephone (781) 238-7176; fax (781) 238-
7199, for more information about this AD.

Material Incorporated by Reference

    (i) You must use the service information specified in Table 1 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 
Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; 
telephone: 44 (0) 1332-242424; fax: 44 (0) 1332-249936.
    (3) You may review copies at the FAA, New England Region, 12 New 
England Executive Park, Burlington, MA; 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: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

                                   Table 1--Material Incorporated by Reference
----------------------------------------------------------------------------------------------------------------
    Alert Service Bulletin No.               Page                 Revision                     Date
----------------------------------------------------------------------------------------------------------------
RB.211-72-AF260; Total pages--11..  ALL..................  Original.............  October 17, 2006.
RB.211-72-AF260; Total pages--11..  ALL..................  1....................  January 17, 2007.
RB.211-72-AF260; Total pages--11..  ALL..................  2....................  July 4, 2007.
RB.211-72-AF313; Total pages--11..  ALL..................  Original.............  February 22, 2007.
----------------------------------------------------------------------------------------------------------------


    Issued in Burlington, Massachusetts, on August 25, 2008.
Mark A. Rumizen,
Acting Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. E8-20212 Filed 9-8-08; 8:45 am]
BILLING CODE 4910-13-P
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.