FAA Proposes Update to Airworthiness Directive for Honeywell Turboshaft Engines

Summary

The FAA proposes to update an existing airworthiness directive for certain Honeywell International Inc. turboshaft engines, including the T5317A-1, to require more frequent inspections of fuel control regulator assemblies and expand the engine's applicability to helicopters certified under specific regulations. The update aims to prevent in-flight engine failure and forced autorotation landing due to reported issues with the fuel control regulator assembly's drive shaft and pump gear splines.