INSPECTION AND CHECK
61-00-39
Page 5-14
Rev. 17 Apr/20
Propeller Owner’s Manual
139
B. Periodic Maintenance
(1) Lubricate the propeller assembly.
(a) Refer to the section, “Lubrication” in the
Maintenance Practices chapter of this manual for
intervals and procedures.
C. Compliance Inspections
(1) B-834-20 and B-834-22 Guide Collars
(a) This inspection applies to B-834-20 and B-834-22
guide collars installed on HC-B3TN-5(M,N,P)(L)
propellers with serial numbers below BV-4870 (right
hand rotation), and BV-4862 (left hand rotation).
NOTE: An “L” following the propeller model
number denotes left hand rotation, i.e.,
HC-B3TN-5(M,N,P)L.
(b) These guide collars require inspection for cracks
between the surface of the guide collar and the thin
wall of the counterbored hole where the guide collar
screw is inserted. This repetitive inspection must be
performed at 500 hour intervals.
(c) Record compliance with this inspection in the
propeller logbook.
(d) If a crack is found, an appropriately licensed
propeller repair facility must replace both the guide
collar and the start lock units with current parts
configurations identified in Hartzell Propeller Inc.
Manual 118F (61-10-18). Replacing the guide
collar and start lock units with the current parts
configurations terminates this inspection.
