airworthiness · Rule · Final rule. · Published 2013-10-03 · Effective 2013-11-07 · 78 FR 61168
Document
Document number
2013-23448
Federal Register citation
78 FR 61168
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Rolls-Royce plc Turbofan
Publication date
2013-10-03
Effective date
2013-11-07
FAA docket
Docket No. FAA-2013-0052
Abstract
We are adopting a new airworthiness directive (AD) for all Rolls-Royce plc (RR) RB211-535E4-37, RB211-535E4-B-37, RB211-535E4-C- 37, and RB211-535E4-B-75 turbofan engines. This AD requires removal of affected parts using a drawdown plan. This AD was prompted by RR updating the low-cycle-fatigue life analysis for the low pressure turbine (LPT) stage 2 discs. We are issuing this AD to prevent LPT stage 2 disc failure, which could result in uncontained engine damage and damage to the airplane.