Airworthiness directives › 2016-17-01
AD 2016-17-01 Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
Applicability*9
This AD applies to Rolls-Royce Deutschland Ltd & Co (RRD) KG Tay 650-15 and Tay 651-54 turbofan engines with stage 1 high-pressure turbine (HPT) disks, part number (P/N) JR32013 or P/N JR33838, or stage 1 low-pressure turbine (LPT) disks, P/N JR32318A, installed.
Compliance
After the effective date of this AD, do not install any part identified in paragraph (e) of this AD into any engine, or return any engine to service with any part identified in paragraph (e) of this AD, installed, if the part exceeds the cyclic life limit specified in paragraphs (e)(2) and (e)(3) of this AD.
Required actions
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.
Unsafe condition
Comply with this AD within the compliance times specified, unless already done. (1) Re-calculate the cyclic life of stage 1 HPT disks, P/N JR32013, as follows: (i) If a stage 1 HPT disk, P/N JR32013, was ever operated under a different engine flight plan profile than the engine flight plan profile operated on the last flight, or was ever installed and operated in a different engine model, do the following: (A) Within 30 days after the effective date of this AD, re-calculate the cyclic life for each stage 1 HPT disk, P/N JR32013. Use the RRD Time Limits Manual (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 1(E) or (1)(F), dated September 15, 2014 to re-calculate the cyclic life. (B) Reserved. (ii) If you change your flight plan profile or install a stage 1 HPT disk, P/N JR32013 or P/N JR33838, or stage 1 LPT disk, P/N JR32318A, into a different engine model after the effective date of this 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 1(E) or (1)(F), dated September 15, 2014 to re-calculate the cyclic life. (2) For engines with a stage 1 HPT disk, P/N JR32013, installed, do the following: (i) Remove from service any stage 1 HPT disk, P/N JR32013, within 100 flight cycles after the effective date of this AD or before exceeding the new, reduced cyclic life limits specified in paragraphs (e)(2)(i)(A) through (e)(2)(i)(E) of this 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 plan profile 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 plan profile 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. (ii) Reserved. (3) For engines with a stage 1 HPT disk, P/N JR33838, or stage 1 LPT disk, P/N JR32318A, installed, do the following: (i) Remove from service any stage 1 HPT disk, P/N JR33838, or stage 1 LPT disk, P/N JR32318A, before exceeding the cyclic life limits specified in paragraphs (e)(3)(i)(A) through (e)(3)(i)(E) of this AD, as follows: (A) For RRD Tay 650-15 engines operated under engine flight plan profile A, the cyclic life limit for stage 1 HPT disk, P/N JR33838, and stage 1 LPT disk, P/N JR32318A, is 23,000 FCSN. (B) For RRD Tay 650-15 engines operated under engine flight plan profile B, the cyclic life limit for stage 1 HPT disk, P/N JR33838, and stage 1 LPT disk, P/N 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 1 HPT disk, P/N JR33838, and stage 1 LPT disk, P/N 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 1 HPT disk, P/N JR33838, and stage 1 LPT disk, P/N 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 1 HPT disk, P/N JR33838, is 14,250 FCSN and the cyclic life limit for stage 1 LPT disk, P/N JR32318A, is 20,000 FCSN. (ii) Reserved.
Affected ADs
This AD supersedes AD 2006-18-14.
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