AD 2018-03-22
Effective 03/21/2018 · Published 02/14/2018
Airworthiness Directives; GE Aviation Czech s.r.o. Turboprop Engines
Summary
We are adopting a new airworthiness directive (AD) for GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E- 11S, and M601F turboprop engines. This AD requires removal of certain power turbine (PT) disks installed on the affected engines. This AD was prompted by a design review by the manufacturer that determined PT rotors with certain disks have less overspeed margin than originally stated duri…