Propeller Owner’s Manual
136
INSPECTION AND CHECK
61-00-36
Page 5-12
Rev. 2 Feb/17
B. Grease or Oil Leakage
WARNING:
UNUSUAL OR ABNORMAL GREASE
LEAKAGE OR VIBRATION, WHERE THE
CONDITION STARTED SUDDENLY,
CAN BE AN INDICATION OF A FAILING
PROPELLER BLADE OR BLADE
RETENTION COMPONENT. AN INFLIGHT
BLADE SEPARATION CAN RESULT IN
DEATH, SERIOUS BODILY INJURY, AND/
OR SUBSTANTIAL PROPERTY DAMAGE.
UNUSUAL OR ABNORMAL GREASE
LEAKAGE OR VIBRATION DEMANDS
IMMEDIATE INSPECTION FOR A POSSIBLE
CRACKED HUB.
NOTE: A new or newly overhauled propeller may leak
slightly during the first several hours of operation.
This leakage may be caused by the seating of seals
and O-rings, and the slinging of lubricants used
for seal lubrication during assembly. Such leakage
should cease within the first ten hours of operation.
(1) Leakage that persists beyond the first ten hours of
operation ona new or newly overhauled propeller, or
occurs on a propeller that has been in service for some
time will require repair. A determination should be made
as to the source of the leak. The only leakage that is field
repairable is the removal and replacement of the O-ring
seal between the engine and propeller flange. All other
leakage repairs should be referred to
a certified propeller
repair station with the appropriate rating. An instance of
abnormal grease leakage should be inspected using the
following the procedure:
(a) Remove the spinner dome.