Airworthiness directives › 2016-03-03
AD 2016-03-03 Airworthiness Directives; Rolls-Royce plc Turbojet Engines
Applicability*9
This AD applies to all Rolls-Royce plc (RR) Viper Mk. 521, Viper Mk. 522, and Viper Mk. 601-22 turbojet engines.
Compliance
After the effective date of this AD, do not install any affected part identified in paragraph (e) of this AD into any engine, nor return any engine to service with any affected part identified in paragraph (e) of this AD installed, if any affected part exceeds the life limit specified in the appropriate ASB identified in paragraph (e)(1) of this AD and/or the life limit identified in paragraph (e)(2) 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) Within 30 days after the effective date of this AD, or before any affected part exceeds its new revised life limit, whichever occurs later, remove any affected engine from service. Use Table 1 of RR Alert Service Bulletin (ASB) Mk. 521 Number 72-A408, Circulation A, dated January 2015; RR ASB Mk. 521 Number 72-A408, Circulation B, dated January 2015; RR ASB Mk. 522 Number 72-A413, Circulation A, dated January 2015; RR ASB Mk. 522 Number 72-A412, Circulation B, dated January 2015; and RR ASB Mk 601-22 Number 72-A207, dated January 2015, to identify the affected parts installed on each engine and determine their respective new life limits. (2) For the RR Viper Mk. 601-22 turbojet engine, remove compressor shaft, part number V900766, from service before the compressor shaft accumulates 20,720 flight cycles since new. (3) Replace any part identified in paragraph (e)(1) or (e)(2) of this AD with a part eligible for installation before the affected part reaches its new life limit specified in paragraph (e)(2) of this AD or in the ASBs referenced in paragraph (e)(1) of this AD.
Affected ADs
This AD supersedes AD 2013-11-13.
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