Airworthiness Directives; Eurocopter France Model AS350B, B1, B2, B3, BA, and D Helicopters
airworthiness · Rule · Final rule. · Published 2003-08-06 · Effective 2003-09-10 · 68 FR 46443
Document
Document number
03-19575
Federal Register citation
68 FR 46443
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2003-08-06
Effective date
2003-09-10
FAA docket
Docket No. 2003-SW-02-AD
Abstract
This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (ECF) model helicopters that requires replacing the main gearbox (MGB) opening neoprene cowling seals (seals) with airworthy glass/silicone seals. This amendment is prompted by the discovery that neoprene seals currently installed on the MGB opening cowlings do not provide the fire protection required by the airworthiness standards. The actions specified by this AD are intended to prevent a fire in the engine compartment from reaching the MGB compartment that contains parts that are not fire resistant and subsequent loss of control of the helicopter.