airworthiness · Rule · Final rule. · Published 2016-03-15 · Effective 2016-04-19 · 81 FR 13713
Document
Document number
2016-05701
Federal Register citation
81 FR 13713
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Rolls-Royce plc Turbofan
Publication date
2016-03-15
Effective date
2016-04-19
FAA docket
Docket No. FAA-2014-0561
Abstract
We are superseding airworthiness directive (AD) 2015-04-03 that applies to certain Rolls-Royce plc (RR) RB211 Trent 768-60, 772- 60, and 772B-60 turbofan engines. AD 2015-04-03 required inspection of the sealing sleeve on the high-pressure/intermediate-pressure (HP/IP) turbine support internal oil feed tube and removal of those sealing sleeves affected by AD 2015-04-03. This AD requires removal of either the affected sealing sleeve only or both the affected sealing sleeve and the oil feed tube. This AD was prompted by fractures of the HP/IP turbine support internal oil feed tube. We are issuing this AD to prevent failure of the HP/IP turbine support internal oil feed tube, uncontained engine failure, and damage to the airplane.