Airworthiness Directives; ATR Model ATR42-500 Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2008-02-05 · Effective 2008-02-20 · 73 FR 6594
Document
Document number
E8-2004
Federal Register citation
73 FR 6594
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
ATR Model ATR42-500
Publication date
2008-02-05
Effective date
2008-02-20
FAA docket
Docket No. FAA-2008-0121
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain ATR Model ATR42-500 series airplanes. This AD requires removing metallized polyethylene terephtalate (MPET) insulation blankets installed on the left and the right sides of the airplane over frame 24 between stringers 5 and 14. This AD results from reports indicating that burnt spots were found on the MPET insulation blankets installed over frame 24. The actions specified by this AD are intended to ensure that MPET insulation blankets are removed over frame 24. Such MPET insulation blankets, if not removed, could propagate a small fire that is the result of an electrical arc and could lead to a much larger fire.