AD 2010-14-20
Effective 08/17/2010 · Published 07/13/2010
Airworthiness Directives; McCauley Propeller Systems Model 4HFR34C653/L106FA Propellers
Summary
The FAA is adopting a new airworthiness directive (AD) for McCauley Propeller Systems model 4HFR34C653/L106FA propellers. This AD requires a onetime fluorescent penetrant inspection (FPI) and eddy current inspection (ECI) of the propeller hub for cracks. This AD results from reports of 10 hubs found cracked during propeller overhaul. We are issuing this AD to prevent failure of the propeller hub, which could cause b…