Avionics and Gear Squawk Box

Airplane Propeller Problems

Editorial Staff

Tuesday, November 23, 2021 at 03:53 PM ET

Verified

Global 5000

Key Takeaways:

Propeller components experienced structural issues, including a cracked hub and a massive oil leak from the propeller hub.
Operational problems arose from improperly configured propellers, such as an incorrectly pitched propeller causing overspeeding and an out-of-balance propeller leading to excessive vibrations.
Multiple incidents involved malfunctions with propeller feathering mechanisms, manifesting as uncommanded feathering, failure to unfeather, and premature feathering during shutdown.

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Cessna 152

Cracked Propeller Hub

Editorial Staff