Airworthiness Directive · Amendment 39-17834 · Austro Engine GmbH Engines
Austro Engine GmbH Engines
This AD applies to all Austro Engine GmbH model E4 engines, with a waste gate controller, part number (P/N) E4A-41-120-000, Revision 060 or lower revision; or a waste gate controller, P/N E4B-41-120-000, Revision 010 or lower revision, installed.
We are superseding airworthiness directive (AD) 2013-14-08 for all Austro Engine GmbH model E4 engines. AD 2013-14-08 required removing from service certain part number (P/N) waste gate controllers. This AD requires removing certain additional P/N waste gate controllers from service. This AD was prompted by several reports of power loss events due to fracture of the waste gate controller lever. We are issuing this AD to prevent failure of the waste gate controller lever, which could lead to damage to one or more engines, loss of thrust control, and damage to the airplane.
(1) Comply with this AD within the compliance times specified, unless already done.
(2) At the next maintenance action for any reason, or within 110 flight hours after the effective date of this AD, or within three months after the effective date of this AD, whichever occurs first, remove from service waste gate controller, P/N E4A-41-120-000, Revision 060 or lower revision, and waste gate controller, P/N E4B-41-120-000, Revision 010 or lower revision.
After the effective date of this AD, do not install any waste gate controller, P/N E4A-41-120-000, Revision 060 or lower revision, or waste gate controller, P/N E4B-41-120-000, Revision 010 or lower revision, onto any engine, or approve for return to service any engine that has either waste gate controller installed.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
