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Thu, Apr 27, 2017

AD: Rolls-Royce plc Turbofan Engines

AD NUMBER: 2017-08-10

PRODUCT: All Rolls-Royce plc (RR) RB211-Trent 970-84, RB211-Trent 970B-84, RB211-Trent 972-84, RB211-Trent 972B-84, RB211-Trent 977-84, RB211-Trent 977B-84, and RB211-Trent 980-84 turbofan engines.

ACTION: Final Rule; request for comments.

SUMMARY: The FAA is superseding airworthiness directive (AD) 2017-01-01 for the products listed above. 

AD 2017- 01-01 required inspections of the low-pressure turbine (LPT) exhaust case and support assembly or tail bearing housing (TBH) to detect cracks or damage. 

This AD corrects references to certain service bulletins in the compliance section of AD 2017-01-01. 

This AD was prompted by reports that references to service bulletins in AD 2017-01-01 are incorrect. The FAA is issuing this AD to correct the unsafe condition on these products. 

DATES: This AD is effective May 9, 2017. Comments must be received by June 8, 2017.

FMI: AD 

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