Airworthiness Directives; Bombardier-Rotax GmbH Type 912 F, 912 S, and 914 F Series Reciprocating Engines
airworthiness · Rule · Final rule; request for comments. · Published 2002-08-16 · Effective 2002-09-03 · 67 FR 53473
Document
Document number
02-20266
Federal Register citation
67 FR 53473
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Publication date
2002-08-16
Effective date
2002-09-03
FAA docket
Docket No. 2002-NE-17-AD
Abstract
This amendment adopts a new airworthiness directive (AD) that is applicable to certain serial numbers (SN's) of Bombardier-Rotax GmbH type 912 F, 912 S and 914 F series reciprocating engines. This action requires replacement of the valve spring retainers, part number (P/N) 854.182, with the new-reinforced valve spring retainers, P/N 854.184. This amendment is prompted by reports of several cracked valve spring retainers discovered in-service. The actions specified in this AD are intended to prevent cracking of the valve spring retainers resulting in possible engine failure while in-flight.