Airworthiness Directives; Fokker Model F27 Mark 050 Series Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 1997-12-31 · Effective 1998-01-15 · 62 FR 68159
Document
Document number
97-34040
Federal Register citation
62 FR 68159
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Fokker Model F27 Mark 050 Series
Publication date
1997-12-31
Effective date
1998-01-15
FAA docket
Docket No. 97-NM-255-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050 series airplanes. This action requires modification of the air outlet opening of the engine air bypass duct. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to prevent accumulation of ice in the engine air intake duct and subsequent ingestion of ice into the engine, which could result in engine power fluctuations and reduced controllability of the airplane.