[4910-13-P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2006-25513; Directorate Identifier 99-NE-61-AD; Amendment 39- 18614; AD 2016-17-01] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT

. ACTION: Final rule. SUMMARY: We are superseding airworthiness directive (AD) 2006-18-14 for all RollsRoyce Deutschland Ltd & Co KG (RRD) Tay 650-15 and Tay 651-54 turbofan engines. AD 2006-18-14 required calculating and re-establishing the cyclic life ofstage 1highpressure turbine (HPT) disks,part number (PIN) JR32013 and 

### PIN JR33838, and stage 1 low-pressure turbine (LPT) disk, 

### PINJR323l8A. In addition, this AD requires recalculating the cyclic life, and would impose a reduced cyclic life ofstage 1HPT disk, 

### PIN JR32013. This AD was prompted by RRD review ofthe cyclic life limit ofparts affected by AD 2006-18-14 and the RRD conclusion that the stage 

### 1HPT disk, 

### PIN JR32013 , requires further cyclic life limit reduction. We are issuing this AD to prevent failure ofstage 1HPT disks, 

### PIN JR32013 and 

### PINJR33838, and stage 1LPT disk, 

### PIN JR323l8A, uncontained disk release and damage to the airplane. DATES: This AD is effective [INSERT DATE 35 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. The Director ofthe Federal Registerapproved the incorporation by reference a certain publication listedinthis AD as of [INSERT DATE 35 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. ADDRESSES: For service information identified in this final rule, contact Rolls-Royce Deutschland Ltd & Co KG; Eschenweg 11, Dahlewitz, 15827 Blankenfelde-Mahlow, Germany; phone: 49-0-33-7086-1064; fax: 49-0-33-7086-3276. You may view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information onthe availability ofthis material at the FAA, call 781- 238-7125. Itis also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2006-25513. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating DocketNo. FAA-2006-25513; 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 mandatory continuing airworthiness information, regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800-647-5527) is Document Management Facility, U.S. Department ofTransportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 NewJersey Avenue SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Philip Haberlen, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7770; fax: 781-238-7199; email: philip.haberlen@faa.gov.

2SUPPLEMENTARY INFORMATION: Discussion We issued a notice ofproposedrulemaking (NPRM) to amend 14 CFRpart 39 to supersede AD 2006-18-14, Amendment 39-14753 (71 FR 52988, September 8, 2006), ("AD 2006-18-14"). AD 2006-18-14 applied to the specified products. The NPRM published in the Federal Register on March 11, 2016 (81 FR 12841). The NPRM proposed to require calculating and re-establishing the cyclic life ofstage 1 HPT disks, 

### PIN JR32013 and 

### PIN JR33838, and stage 1LPT disk, 

### PIN JR32318A. TheNPRM also proposed to require removing from service, using a drawdown schedule, those stage 1 HPT disks and stage 1 LPT disks operated under Tay 650-15 engine flight planprofiles A, B, C, or D; or operatedunderthe Tay 651-54 engine datum flight profile, at reduced cyclic life limits found in the RRD Time Limits Manual (TLM) T-TAY-3RR, Chapter 05, Time Limits, Subject 05-10-01, dated September 15, 2014 and T-TAY-5RR, Chapter 05-10-01, dated September 15, 2014. Comments We gave the public the opportunityto participate in developing this AD. We considered the comments received. , Changes to Related Service Information under 1 CFR Part 51 We removed AlertNon-Modification Service Bulletin (NMSB) No. TAY-72- A1821, Revision 1, dated March 26, 2015 from Related Service Information under 1CFR Part 51, which is not incorporated by reference inthis AD. We added the RRD TLM T-TAY-3RR, Chapter 05, Time Limits, Subject 05-10- 01, dated September 15, 2014.

3Request to Change Compliance RRD requests that the cyclic life limits for the HPT stage 1disk, 

### PINJR33838, installed in RRD Tay 650-15 and Tay 651-54 engines to be changed in this AD to match the life limits found in the RRD TLM T-TAY-3RR, Chapter 05, Time Limits, Subject 05- 10-01 , dated September 15, 2014 and the RRD TLM T-TAY-5RR, Chapter 05-10-01 , dated September 15, 2014. RRD updated their lifing analysis for the HPT stage 1disk, 

### PINJR33838 and their new analysisjustified an increased cyclic life limit for the HPT stage 1disk, 

### PIN JR33838 installed in the RRD Tay 650-15 and Tay 651-54 engines for certain flight profiles. These life increases were reflected in the applicable service bulletin and the TLM and the FAA did not have an opportunity to mandate the increase in the cyclic life limits via AD until now. The FAA previously addressed the increase in the life limits via a global AMOC. We agree. The FAA accepts RRD's new lifing analysis. We changed the cyclic life limits in paragraphs (e)(3)(i)(B), (C), and (D) ofthis AD for the HPT stage 1disk, 

### PIN JR33838, installed in RRD Tay 650-15 engines to 21 ,000 flight cycles since new (FCSN), 18,000 FCSN, and 14,250 FCSN for flight profiles B, C, and D, respectively. We also changed the cyclic life limit in paragraph (e)(3)(i)(E) ofthis AD for the HPT stage 1disk, 

### PIN JR33838, installed in RRD Tay 651-54 engines to 14,250 FCSN for any flight profile. Conclusion We reviewed the available data, including the comments received, and determined that air safety and the public interest require adopting this AD with the changes described

4previously. We determined that these changes will not increase the economic burden on any operator or increase the scope ofthis AD. Related Service Information under 1 CFR Part 51 RRD TLM T-TAY-3RR, Chapter 05, Time Limits, Subject 05-10-01, dated September 15, 2014, contains information on re-calculating the cyclic life. This service information is reasonably available because the interested parties have access to it through their normal course ofbusiness or by the means identified in the ADDRESSES section. OtherRelated Service Information RRD TLM T-TAY-5RR, Chapter 05-10-01, dated September 15, 2014 provides the new, reduced cyclic life limits for RRD Tay 651-54 engines operated under any engine flight plan profile. RRD Alert Non-Modification Service Bulletin TAY-72-A1821, Revision 1, dated March 26, 2015, provides reduced cyclic life limits for RRD Tay 650-15 and RRD Tay 651-54 engines operated under various affected flight plan profiles. Costs ofCompliance We estimate that this AD affects 25 engines installed on airplanes ofU.S. registry. We also estimate that it would take about 0.5 hours per engine to comply with this AD. The average labor rate is $85 perhour. The pro-rated life limit reduction cost is about $23,053 per engine. Based on these figures, we estimate the cost ofthis AD on U.S. operators to be $577,388.



### 5Authority for this Rulemaking Title 49 ofthe United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, Section 106, describes the authority ofthe FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope ofthe 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 withpromoting safe flight ofcivil 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 ofthat authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings 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 onthe distribution ofpower and responsibilities among the various levels ofgovernment. For the reasons discussed above, I certify that this AD: (1) Is not a "significant regulatory action" under Executive Order 12866, (2) Is not a "significant rule" under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaskato the extentthat itjustifies making a regulatory distinction, and

6(4) Will not have a significant economic impact, positive or negative, on a substantial number ofsmall entities under the criteria ofthe Regulatory Flexibility Act. List ofSubjects in 14 CFRPart 39 Airtransportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption ofthe Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends part 39 ofthe Federal Aviation Regulations (14 CFRpart 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 airworthiness directive (AD) 2006-18- 14, Amendment 39-14753 (71 FR 52988, September 8, 2006), ("AD 2006-18-14"), and adding the following new AD: 2016-17-01 Rolls-Royce Deutschland Ltd & Co KG (formerly Rolls-Royce pie): Amendment 39-18614; DocketNo. FAA-2006-25513; Directorate Identifier 99-NE-61- AD. (a) Effective Date This AD is effective [INSERT DATE 35 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. (b) Affected ADs This AD supersedes AD 2006-18-14.

7(c) Applicability This AD applies to Rolls-Royce Deutschland Ltd & Co (RRD) KG Tay 650-15 andTay 651-54 turbofan engines with stage 

### 1high-pressure turbine (HPT) disks, part number (PIN) JR32013 or

### PIN JR33838, or stage 1 low-pressure turbine (LPT) disks,

### PIN JR323l8A, installed

. (d) Unsafe Condition This AD was prompted by RRD review ofthe cyclic life limit ofparts affected by AD 2006-18-14 and the RRD conclusion that the stage 1 HPT disk, 

### PIN JR32013 , requires further cyclic life limit reduction. We are issuing this AD to prevent failure of stage 1 HPT disks, 

### PIN JR32013 and 

### PIN JR33838, and stage 1 LPT disk, 

### PIN JR323l 8A, which could result in an uncontained engine failure and damage to the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. (1) Re-calculate the cyclic life ofstage 1HPT disks, 

### PIN JR32013, as follows: (i) Ifa stage 1 HPT disk, 

### PIN JR32013, was ever operated under a different engine flight planprofile than the engine flight planprofile operated onthe last flight, or

was ever installed and operated in a different engine model, do the following: (A) Within 30 days after the effective date ofthis AD, re-calculate the cyclic life for each stage 1 HPT disk, 

### PIN JR32013. Use the RRD Time Limits Manual (TLM) TT AY-3RR, Chapter 05, Time Limits, Subject 05-10-01, Task 05-10-01-800-000, Subtask 05-10-01-860-036, paragraph l(E) or (l)(F), dated September 15, 2014 to re-calculate the cyclic life

. 8(B) Reserved. (ii) Ifyou change your flight plan profile or install a stage 1HPT disk, 

### PIN JR32013 or 

### PIN JR33838, or stage 1 LPT disk, 

### PIN JR32318A, into a different engine model after the effective date ofthis AD, re-calculate the cyclic life within 30 days of making the change. Use the RRD TLM T-TAY-3RR, Chapter 05, Time Limits, Subject 05-10-01, Task 05-10-01-800-000, Subtask 05-10-01-860-036, paragraph l(E) or (l)(F), dated September 15, 2014 to re-calculate the cyclic life. (2) For engines with a stage 1 HPT disk, 

### PIN JR32013, installed, do the following: (i) Remove from service any stage 1HPT disk, 

### PIN JR32013, within 100 flight cycles after the effective date ofthis AD or before exceeding the new, reduced cyclic life limits specified in paragraphs (e)(2)(i)(A) through (e)(2)(i)(E) ofthis AD, whichever

occurs later, as follows: (A) For RRD Tay 650-15 engines operated under engine flight plan profile A, the

new, reduced cyclic life limit is 18,900 flight cycles-since-new (FCSN). (B) For RRD Tay 650-15 engines operated under engine flight planprofile B, the

new, reduced cyclic life limit is 15,500 FCSN. (C) For RRD Tay 650-15 engines operated under engine flight plan profile C, the

new,reduced cyclic life limit is 11,500 FCSN. (D) For RRD Tay 650-15 engines operated under engine flight planprofile D, the

new, reduced cyclic life limit is 9,300 FCSN. (E) For RRD Tay 651-54 engines operated under any engine flight plan profile, the new, reduced cyclic life limit is 10,873 FCSN. 9(ii) Reserved. (3) For engines with a stage 1 HPT disk, 

### PIN JR33838, or stage 1LPT disk, 

### PIN JR323l8A, installed, do the following: (i) Remove from service any stage 1HPT disk, 

### PINJR33838, or stage 1LPT disk, 

### PINJR323 l 8A, before exceeding the cyclic life limits specified in paragraphs (e)(3)(i)(A) through (e)(3)(i)(E) ofthis AD, as follows: (A) For RRD Tay 650-15 engines operated under engine flight plan profile A, the cyclic life limit for stage 1HPT disk, 

### PINJR33838, and stage 1LPT disk, 

### PIN JR323 l 8A, is 23,000 FCSN. (B) For RRD Tay 650-15 engines operated under engine flight plan profile B, the cyclic life limit for stage 1HPT disk, 

### PINJR33838, and stage 1LPT disk, 

### PIN JR32318A, is 21,000 FCSN. (C) For RRD Tay 650-15 engines operated under engine flight plan profile C, the cyclic life limit for stage 1HPT disk, 

### PINJR33838, and stage 1LPT disk, 

### PIN JR32318A, is 18,000 FCSN. (D) For RRD Tay 650-15 engines operated under engine flight plan profile D, the cyclic life limit for stage 1HPT disk, 

### PINJR33838, and stage 1LPT disk, 

### PIN JR32318A, is 14,250 FCSN. (E) For RRD Tay 651-54 engines operated under any engine flight plan profile, the cyclic life limit for stage 1HPT disk, 

### PIN JR33838, is 14,250 FCSN and the cyclic life limit for stage 1 LPT disk, 

### PINJR32318A, is 20,000 FCSN. (ii) Reserved.

10(f) Installation Prohibition After the effective date ofthis AD, do not install any part identified in paragraph (e) ofthis AD into any engine, orreturn any engine to service with any part identified in paragraph (e) ofthis AD, installed, ifthe part exceeds the cyclic life limit specified in paragraphs (e)(2) and (e)(3) ofthis AD. (g) Alternative Methods ofCompliance (AMOCs) The Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. (h) Related Information (1) For more information about this AD, contact Philip Haberlen, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7770; fax: 781-238-7199; email: philip.haberlen@faa.gov. (2) Refer to MCAI European Aviation Safety Agency, AD 2015-0056, dated March 31, 2015, for more information. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating it in DocketNo. FAA-2006-25513. (3) Rolls-Royce Deutschland Ltd & Co KG Alert Non-Modification Service BulletinNo. TAY-72-A1821, Revision 1, dated March 26, 2015, which is not incorporated by reference in this AD, canbe obtained from Rolls-Royce Deutschland Ltd & Co KG, using the contact information in paragraph (i)(3) ofthis AD. (4) RRD TLM T-TAY-5RR, Chapter 05-10-01, dated September 15, 2014.

11(5) You may view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information onthe availability of this material at the FAA, call 781-238-7125. (i) Material Incorporated by Reference (1) The Director ofthe Federal Register approved the incorporation by reference (IBR) ofthe service information listed in this paragraph under 5 U.S.C. 552(a) and 1CFR part 51.(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Rolls-Royce Deutschland Ltd & Co KG, Time Limits Manual T-TAY-3RR, Chapter 05, Time Limits, Subject 05-10-01, dated September 15, 2014. (ii) Reserved. (3) For Rolls-Royce Deutschland Ltd & Co KG service information identified in this AD, contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827 Blankenfelde-Mahlow, Germany; phone: 49-0-33-7086-1064; fax: 49-0-33-7086-3276. (4) You may view this service information at FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. (5) You may view this service information at the National Archives and Records Administration (NARA). For information onthe availability ofthis material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibrlocations.html.

12Issued in Burlington, Massachusetts, onAugust 16, 2016.

Colleen M. D'Alessandro, Manager, Engine & Propeller Directorate, Aircraft Certification Service.

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