AD 2015-07-01
Effective 05/08/2015 · Published 04/03/2015
Airworthiness Directives; Rolls-Royce plc Turbofan Engines
Summary
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) RB211-524 turbofan engines with certain part number (P/N) low-pressure turbine (LPT) stage 3 turbine blades installed. This AD requires implementation of a life limit for certain P/N LPT stage 3 turbine blades and replacement of affected blades that reach or exceed the life limit. This AD was prompted by reports of LPT stage 3 turbin…