Manufacturer
Pratt & Whitney Canada
Number
FAA 2019-22-03]
Model(s)
PT6B-37A
Published Date
Effective Date
Summary
Supersedes AD 2015-20-04, which required initial and repetitive inspections until replacement of the No. 10 bearing, and eventual replacement of the No. 9 bearing, both located in the engine reduction gearbox assembly. This AD requires removal from service and replacement of the No. 9 and No. 10 position bearings. This AD was prompted by reports of incorrect engine torque for PT6B-37A turboshaft engines.
UUID
206