Page 5-7
Dec/05
Propeller Owner’s Manual
175
INSPECTION AND CHECK
61-00-75
CAUTION 2:
CHECK THE LATEST REVISION OF
HARTZELL SERVICE LETTER 61( ) FOR
THE MOST CURRENT INFORMATION.
(1) Hartzell “reciprocating” propellers installed on piston
engine aircraft are to be overhauled at intervals as
follows:
(a) Agricultural Aircraft -
Propeller models HC-8( )X,V( )-( ) - 1000 hours or 36
calendar months (whichever occurs first).
NOTE 1
: Agricultural aircraft are defined as aircraft
used as aerial applicators that expose the
propeller to a relatively severe chemical/
corrosive environment.
NOTE 2: Once the propeller is used on agricultural
aircraft, the 36 month overhaul limit is to
be maintained even if propeller is later
installed on other category airplanes.
(b) Aerobatic Aircraft - 1000 hours or 60 calendar
months (whichever occurs first).
NOTE
: Aerobatic aircraft are defined as
certificated aerobatic category aircraft
or other aircraft routinely exposed to
aerobatic use.
(c) All Other Aircraft -
Propeller models HC-8( )X,V( )-( ) - 1000 hours or 60
calendar months (whichever occurs first).
4. Inspection Procedures
The following inspections are made on a regular basis, either
before flight, during the 100 hour inspection, or if a problem
is noted. Possible corrections to problems discovered during
inspections, additional inspections, and limits are detailed in the
following inspection procedures.
A. Blade Damage
Refer to the Blade Repairs section in the Maintenance
Practices chapter of this manual for information regarding
blade damage.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
