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8. Damage/Repair Types
A. Airworthy/Unairworthy Damage
(1) Airworthy damage is a specific condition to a propeller component that is within
the airworthy damage limits specified in the applicable Hartzell Propeller Inc.
component maintenance manual.
(a) Airworthy damage does not affect the safety or flight characteristics of the
propeller and conforms to its type design.
(b) Airworthy damage does not require repair before further flight, but should
be repaired as soon as possible to prevent degradation of the damage.
(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
(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.
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2
HARTZELL PROPELLER OVERHAUL MANUAL
(Rev. 1)
For serviceable limits and repair criteria for Hartzell propeller
components, refer to the applicable Hartzell Propeller Inc. component
maintenance manual.
Hartzell recommends that individuals performing major repairs also
have a Factory Training Certificate from Hartzell Propeller Inc.
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).
144
61-10-44
INTRODUCTION
Page 10
Rev. 5 Apr/23
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