Airworthiness Directives; Fokker Model F27 Mark 050 Series Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2001-08-06 · Effective 2001-08-21 · 66 FR 40878
Document
Document number
01-19260
Federal Register citation
66 FR 40878
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Fokker Model F27 Mark 050 Series
Publication date
2001-08-06
Effective date
2001-08-21
FAA docket
Docket No. 2001-NM-141-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050 series airplanes. This action requires installation of a filler plate and a doubler to reinforce the area under the top antenna for the Traffic Collision Avoidance System (TCAS). This action is necessary to prevent cracking due to fatigue in the area under the antenna for the TCAS, which could result in reduced structural capability of the airplane. This action is intended to address the identified unsafe condition.