Hartzell HC-B3-2 Series Owner's Manual And Logbook page 208

(c) If cracks are suspected, additional inspections must
be performed to evaluate the condition before further
flight.
1 These inspections typically include disassembly
of the propeller, followed by inspection of parts,
using nondestructive methods in accordance
with published procedures.
2 These inspections must be performed at
a certified propeller repair station with the
appropriate rating.
(d) Inspect the movement of the propeller blades in
accordance with the section, "Loose Blades" in this
chapter.
(e) Inspect blade track in accordance with the section,
"Blade Track" in this chapter.
CAUTION:
1 Manually (by hand) attempt to turn the blades
(change pitch).
2 Visually check for damaged blades.
(f) If abnormal blade conditions or damage are found,
additional inspections must be performed to evaluate
the condition before further flight.
1 These inspections must be performed at
a certified propeller repair station with the
appropriate rating.
(g) If cracks or failing components are found, these
parts must be replaced before further flight.
1 Report such occurrences to airworthiness
authorities and Hartzell Propeller Inc. Product
Support.
INSPECTION AND CHECK
Propeller Owner's Manual
139
DO NOT USE BLADE PADDLES
TO TURN BLADES.
61-00-39
Page 5-22
Rev. 17 Apr/20