airworthiness · Rule · Final rule; request for comments. · Published 2017-05-25 · Effective 2017-06-09 · 82 FR 24033
Document
Document number
2017-10438
Federal Register citation
82 FR 24033
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Rolls-Royce plc Turbofan
Publication date
2017-05-25
Effective date
2017-06-09
FAA docket
Docket No. FAA-2017-0114
Abstract
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines. This AD requires fluorescent penetrant inspection (FPI) of the compressor intermediate case (CIC) for cracking. This AD was prompted by CICs that were weld repaired and have a higher probability of cracking as a result of the weld repair process. We are issuing this AD to correct the unsafe condition on these products.