Superseded. This AD was superseded by AD 2021-20-21. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2018-16-10
Effective 09/12/2018 · Published 08/28/2018
Airworthiness Directives; GE Aviation Czech s.r.o. Turboprop Engines
Summary
We are adopting a new airworthiness directive (AD) for certain GE Aviation Czech H80-200 turboprop engines. This AD requires replacing the beta switch and adjusting the engine push-pull control to prevent the propeller governor control from going to a negative thrust position. This AD was prompted by an accident involving an Aircraft Industries (AI) L 410 UVP-E20 airplane caused by one propeller going to a negative…