Page 5-3
Rev. 1 Jun/11
Propeller Owner’s Manual
175
INSPECTION AND CHECK
61-00-75
1. Pre-Flight Checks
Follow propeller preflight inspection procedures as specified in
the Pilot Operating Handbook (POH) or this manual. In addition,
perform the following inspections:
A. Blades
(1) Visually inspect the entire blade
(lead, trail, face, and
camber sides)
for nicks, gouges, erosion, and cracks.
Refer to the Maintenance Practices chapter of this
manual, for blade repair information.
Normal blade lead
edge erosion (sand-blasted appearance) is acceptable,
and does not require removal before further flight.
(2) Visually inspect the blades for lightning strike. Refer
to the Lightning Strike section in this chapter for a
description of damage.
B. Inspect the spinner and visible blade retention components
for damage or cracks. Repair or replace components as
required before further flight.
C. Check for loose/missing hardware. Retighten or reinstall as
necessary.
WARNING:
ABNORMAL GREASE LEAKAGE CAN BE
AN INDICATION OF A FAILING PROPELLER
BLADE OR BLADE RETENTION COMPONENT.
AN IN-FLIGHT BLADE SEPARATION CAN
RESULT IN A CATASTROPHIC AIRCRAFT
ACCIDENT.
D. Inspect for grease and oil leakage and determine its source.
WARNING:
ABNORMAL VIBRATION CAN BE AN
INDICATION OF A FAILING PROPELLER
BLADE OR BLADE RETENTION COMPONENT.
AN IN-FLIGHT BLADE SEPARATION CAN
RESULT IN A CATASTROPHIC AIRCRAFT
ACCIDENT.
E. Check the blades for radial play or movement of the blade
tip (in and out, fore and aft, and end play). Refer to Loose
Blades, in the Periodic Inspections section of this chapter, for
blade play limits.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
