Propeller Owner’s Manual
139
INTRODUCTION
61-00-39
Page 1-14
Rev. 17 Apr/20
(2) Unairworthy damage is a specific condition to a propeller
component that exceeds the airworthy damage limits
specified in the applicable Hartzell Propeller Inc.
component maintenance manual.
(a) Unairworthy damage can affect the safety or flight
characteristics of the propeller and does not conform
to its type design.
(b) Unairworthy damage must be repaired before the
propeller is returned to service.
B. Minor/Major Repair
(1) Minor Repair
(a) Minor repair is that which may be done safely in the
field by a certified aircraft mechanic.
1 For serviceable limits and repair criteria for
Hartzell propeller components, refer to the
applicable Hartzell Propeller Inc. component
maintenance manual.
(2) Major Repair
(a) Major repair cannot be done by elementary
operations.
(b) Major repair work must be accepted by an individual
that is certified by the Federal Aviation Administration
(FAA) or international equivalent.
1 Hartzell recommends that individuals performing
major repairs also have a Factory Training
Certificate from Hartzell Propeller Inc.
2 The repair station must meet facility, tooling,
and personnel requirements and is required
to participate in Hartzell Propeller Inc. Sample
Programs as defined in the Approved Facilities
chapter of Hartzell Propeller Inc. Standard
Practices Manual 202A (61-01-02).
