Owners of GE CT7 turboprop engines must repeatedly inspect propeller gearbox impending bypass buttons for extension and replace other parts as necessary to ensure the props feather properly when the pilot wants them to.
Owners of Air Tractor models AT-300, -301, -302 and -440A must inspect the centerline splice joint for cracks and report those findings to the FAA earlier than mandated by a previous AD.
Learjet Model 45 owners are subject to an emergency AD and must look for a certain part in the jack screw assembly that needs replacing.
AD Watch
Key Takeaways:
- Owners of GE CT7 turboprop engines must repeatedly inspect propeller gearbox bypass buttons and replace parts to ensure proper propeller feathering.
- Air Tractor models AT-300, -301, -302, and -440A require an earlier inspection of the centerline splice joint for cracks, with findings reported to the FAA.
- Learjet Model 45 owners are subject to an emergency AD, mandating inspection for and replacement of a specific part in the jack screw assembly.
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