Business · 27/05/1994

Airworthiness Directives; Hamilton Standard 14RF, 247F, 14SF, and 6/5500/F Series Propellers

The Federal Aviation Administration proposes to supersede an existing airworthiness directive for Hamilton Standard propellers, increasing the repetitive inspection interval from 500 to 1,500 hours and requiring improved hardware to reduce wear on the propeller control unit servo ballscrew internal spline teeth.