Propeller Owner’s Manual
139
AIRWORTHINESS LIMITATIONS
61-00-39
Page 2
Rev. 17 Apr/20
1. The Airworthiness Limitations in this chapter have been
relocated from Hartzell Overhaul Manuals 118F (61-10-18) and
132A (61-10-32) to this manual.
2. Replacement Time (Life Limits)
A. The FAA establishes specific life limits for certain component
parts, as well as the entire propeller. Such limits require
replacement of the identified parts after a specified number of
hours of use.
B. The following data summarize all current information about
Hartzell life limited parts as related to propeller models
affected by this manual. These parts are not life limited on
other installations; however, time accumulated toward life
limit accrues when first operated on aircraft/engine/propeller
combinations listed and continues regardless of subsequent
installations (which may or may not be life limited).
(1) Blade models that incorporate ice protection components
do not affect the blade life limit. Example: The (B,K) letter
designation in blade model T10178(B,K) indicates
that ice protection components may be installed. If ice
protection components are installed, the blade life limit
still applies.
C.
The following list specifies life limits for
blades only
that are on
FAA Type Certified Aircraft. Blades listed are life limited only on
the specified applications.
AIRWORTHINESS LIMITATIONS
FAA APPROVED
by: ______________________________ date: ____________
Manager, Chicago Aircraft Certification Office,
ACE-115C
Federal Aviation Administration
