airworthiness · Rule · Final rule. · Published 2020-11-05 · Effective 2020-12-10 · 85 FR 70442
Document
Document number
2020-24539
Federal Register citation
85 FR 70442
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Austro
Publication date
2020-11-05
Effective date
2020-12-10
FAA docket
Docket No. FAA-2019-0664
Abstract
The FAA is superseding Airworthiness Directive (AD) 2018-07-16 for all Austro Engine GmbH model E4 and E4P diesel piston engines. AD 2018-07-16 required initial and repetitive replacement of the waste gate controller and the control rod circlip. This AD retains the requirements of AD 2018-07-16 and requires engine modification by installing a waste gate control-rod fail-safe bridge and new spring- loaded circlip that terminates the initial and repetitive replacement requirements of AD 2018-07-16. This AD was prompted by the development of a modification of the waste gate control rod by adding a fail-safe bridge and spring-loaded circlip. The FAA is issuing this AD to address the unsafe condition on these products.