Service difficulty report · Housing

Difficulty date
October 19, 2001
Submitted
October 19, 2001
Operation
General aviation
Engine
Lyc O320E3D
Engine time
2,981 hours
Part
Housing
Part number
78531
Condition
Cracked
Location
Oil Pump
Part time
2,981 hours
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

UPON DIASSEMBLING THE OIL PUMP, A MINIMUM OF 4 CRACKS WERE FOUND EMANATING RADIALLY FROM THE IMPELLER SHAFT BORE EXTENDING THROUGH THE PUMP BODY. NO EVIDENCE OF FOREIGN OBJECTS PASSING THROUGH THE PUMP GEARS WAS FOUND.