The FAA last week issued an amendment to an existing Airworthiness Directive for McCauley Propeller Systems 1A103/TCM series propellers, which calls for inspections of the propeller hub with a dye-penetrant procedure to check for cracks. The amendment clarifies some details of the inspection procedure and relaxes the replacement requirements. The original AD was intended to prevent propeller separation due to hub fatigue cracking, which can result in loss of control of the airplane. The new AD is effective July 17. The FAA estimates that approximately 3,000 propellers installed on airplanes of U.S. registry will be affected by this AD.
AD Watch: McCauley Propellers
Key Takeaways:
- The FAA has amended an Airworthiness Directive (AD) for McCauley Propeller Systems 1A103/TCM series propellers, effective July 17.
- The AD mandates dye-penetrant inspections of the propeller hub for cracks to prevent propeller separation caused by fatigue.
- The amendment clarifies inspection details and relaxes the original propeller replacement requirements.
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