Page 5-14
Dec/05
Propeller Owner’s Manual
175
INSPECTION AND CHECK
61-00-75
J. Anti-ice System
Refer to the Anti-Ice and De-ice Systems chapter of this
manual for inspection procedures.
5. Special Inspections
A. Overspeed
An overspeed has occurred when the propeller RPM has
exceeded the maximum RPM stated in the applicable
Aircraft Type Certificate Data Sheet. The duration of time
and magnitude of overspeed for a single event determines
the corrective action that must be taken to make sure no
damage to the propeller has occurred.
The criteria for determining the required action after an
overspeed are based on many factors. The additional
centrifugal forces that occur during overspeed are not the
only concern. Some applications have sharp increases in
vibratory stresses at RPMs above the maximum rated for the
airframe/engine/propeller combination.
(1) When a propeller installed on a reciprocating engine
has an overspeed event, refer to the Reciprocating
Engine Overspeed Limits (Figure 5-3) to determine the
corrective action to be taken.
(2) Make a log book entry to document the overspeed
event.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
