Hartzell HC-82XF-1 Owner's Manual page 204

(5) If cracks are suspected, additional inspections must be
performed before further flight. These inspections must
be performed by qualified personnel at an appropriately
licensed propeller repair facility to verify the condition.
Such inspections typically include disassembly of
the propeller followed by inspection of parts, using
nondestructive methods in accordance with published
procedures.
(6) Check the blades and compare blade to blade
differences:
(a) Inspect the propeller blades for unusual looseness
or movement. Refer to Loose Blades section of this
chapter.
(b) Check blade track. Refer to the Blade Track section
of this chapter.
CAUTION:
(c) Manually (by hand) attempt to turn the blades
(change pitch).
(d) Visually check for damaged blades.
(7) If abnormal blade conditions or damage are found,
perform additional inspections (by qualified personnel
at an appropriately licensed propeller repair facility) to
evaluate the condition. Refer to Blade Repairs section in
Maintenance Practices chapter of this manual.
(8) If cracks or failing components are found, these parts
must be replaced before further flight. Report such
occurrences to airworthiness authorities and Hartzell
Propeller Inc. Product Support.
INSPECTION AND CHECK
Propeller Owner's Manual
175
DO NOT USE BLADE PADDLES TO
TURN BLADES.
61-00-75
Page 5-10
Dec/05