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 assemblies are susceptible to structural failures, including cracks in propeller hubs and significant oil leaks, requiring repair or replacement.
Performance issues such as incorrect propeller pitch leading to engine overspeed and dynamic imbalance causing excessive vibration are reported.
Malfunctions in propeller feathering and unfeathering mechanisms can lead to uncommanded feathering during critical operations or failure to unfeather for engine restart.

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Cessna 152

Cracked Propeller Hub

Editorial Staff