airworthiness · Rule · Final rule; request for comments. · Published 2013-10-01 · Effective 2013-10-16 · 78 FR 60186
Document
Document number
2013-23578
Federal Register citation
78 FR 60186
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
AgustaWestland S.p.A. (Agusta)
Publication date
2013-10-01
Effective date
2013-10-16
FAA docket
Docket No. FAA-2013-0640
Abstract
We are adopting a new airworthiness directive (AD) for Agusta Model AB139 and AW139 helicopters. This AD requires deactivating the Full Icing Protection System (FIPS) and installing a placard next to the FIPS controller stating that flight into known icing is prohibited. This AD is prompted by a report of a fire in the aft avionics bay and the baggage compartment resulting from an Auto Transformer Rectifier Unit internal circuit overload. These actions are intended to prevent a fire, structural damage, and subsequent loss of control of the helicopter.