Propeller Owner’s Manual
147
INSPECTION AND CHECK
61-00-47
Page 5-18
Rev. 17 Sep/20
E. Overhaul Periods
(1) In flight, the propeller is constantly subjected to vibration
from the engine and the airstream, as well as high
centrifugal forces.
(2) The propeller is also subject to corrosion, wear, and
general deterioration due to aging. Under these
conditions, metal fatigue or mechanical failures can
occur.
(3) To protect your safety, your investment, and to maximize
the safe operating lifetime of your propeller, it is essential
that a propeller be properly maintained and overhauled
according to the recommended service procedures
.
(a) For Hartzell Propeller Inc. propeller overhaul
periods, refer to Hartzell Propeller Inc. Service Letter
HC-SL-61-61Y.