Propeller Owner's Manual
115N
INTRODUCTION
61-00-15
Page 1-14
Rev. 24 Dec/20
B. Overhaul
(1) Overhaul is the periodic disassembly, cleaning,
inspecting, repairing as necessary, reassembling, and
testing in accordance with approved standards and
technical data approved by Hartzell Propeller Inc.
(2) The overhaul interval is based on hours of service,
i.e., flight time, or on calendar time.
(a) Overhaul intervals are specified in the applicable
Hartzell Propeller Inc. propeller owner’s manual and
Hartzell Service Letter HC-SL-61-61Y.
(b) At such specified periods, the propeller hub
assembly and the blade assemblies must be
completely disassembled and inspected for cracks,
wear, corrosion, and other unusual or abnormal
conditions.
(3) Overhaul must be completed in accordance with
the latest revision of the applicable component
maintenance manual and other publications applicable
to, or referenced in, the component maintenance
manual.
(a) Parts that are not replaced at overhaul must be
inspected in accordance with the check criteria in
the applicable Hartzell Propeller Inc. component
maintenance manual.
(b) Parts that must be replaced at overhaul are
identified by a “Y” in the O/H column of the
Illustrated Parts List in the applicable Hartzell
Propeller Inc. component maintenance manual.
(4) The information in this manual supersedes data in all
previously published revisions of this manual.
