Service difficulty report · Sump

Difficulty date
July 19, 2004
Submitted
October 5, 2004
Operation
General aviation
Engine
Lyc IO540L1A5
Part
Sump
Part number
77517
Condition
Leaking
Location
Engine
Stage of operation
IN
How discovered
9
Nature of condition
W
Precautionary procedure
K

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

What was found

(CAN) AT A RECEIVING INSPECTION OF A NEW, ZERO TIME ENGINE, NUMEROUS VOIDS IN THE CASTING WERE DISCOVERED ON THE ENGINE SUMP. PORT SIDE NEAR PLUG AREA. THE TWO BIGGER ONES HAD A DEPTH MEASUREMENT OF .110 AND .070 RESPECTIVELY. ENGINE MANUFACTURER WAS CONTACTED AND IT WAS DETERMINED TO REPLACE THE SUMP PRIOR TO ENGINE BEING INSTALLED. A NEW SUMP WAS OBTAINED FROM THE MANUFACTURER AND INSTALLED IAW APPLICABLE MANUAL INSTRUCTIONS. NOTE: THERE WAS NO VISUAL EVIDENCE OF CASTING VOIDS ON THE INTERNAL WALLS OF THE OIL SUMP CASE.