Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbojet Engines
airworthiness · Rule · Final rule. · Published 2013-03-20 · Effective 2013-04-24 · 78 FR 17082
Document
Document number
2013-06174
Federal Register citation
78 FR 17082
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Rolls-Royce Deutschland Ltd & Co KG Turbojet
Publication date
2013-03-20
Effective date
2013-04-24
FAA docket
Docket No. FAA-2012-1006
Abstract
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Spey 511-8 turbojet engines. This AD requires inspection and, if necessary, replacement of affected bolts and, if any bolt is found broken, inspection of the adjacent disc(s) for damage. This AD was prompted by a recent quality review determination that bolts with reduced material properties may have been installed in some engines. We are issuing this AD to prevent uncontained turbine disc fracture and damage to the airplane.