Rev.4
11-4
• Whenever there is evidence of rough operation check for proper bolt torque. For new
installations it often helps to remove the propeller, rotate it 180˚ and reinstall.
• If the propeller shows any of the following signs of damage it must either be repaired
(if possible) or retired from service:
Cracks in the metal hub or bolts
Loose metal leading edge
A crack across the blade
A long or deep crack along the blade length
Any portion of composite material missing
Obvious damage or wear beyond economical repair