Airworthiness Directives; Eurocopter Deutschland GmbH Helicopters
airworthiness · Rule · Final rule. · Published 2013-09-04 · Effective 2013-10-09 · 78 FR 54383
Document
Document number
2013-19500
Federal Register citation
78 FR 54383
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Eurocopter Deutschland GmbH
Publication date
2013-09-04
Effective date
2013-10-09
FAA docket
Docket No. FAA-2013-0239
Abstract
We are adopting a new airworthiness directive (AD) for all Eurocopter Deutschland GmbH (ECD) EC 135 P1, P2, P2+, T1, T2, and T2+ helicopters equipped with a certain main transmission housing upper part. This AD requires installing a corrugated washer in the middle of the main transmission filter housing upper part and modifying the main transmission housing upper part. This AD was prompted by an inspection of housing upper parts that revealed the bypass inlet in the oil filter area was not manufactured in accordance with applicable design specifications. The actions of this AD are intended to prevent failure of the main transmission and subsequent loss of control of the helicopter.