Service difficulty report · Oil Sump · Cessna 172

Difficulty date
August 16, 1996
Submitted
March 26, 2000
Operation
General aviation
Make and model
Cessna 172
Engine
Cont O300A
Part
Oil Sump
Part number
530763A1
Condition
Cracked
Location
Fwd Drain Plug
Stage of operation
IN
Nature of condition
K, O
Precautionary procedure
K

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

What was found

(CAN) DURING ANNUAL INSPECTION AN OIL LEAK REPORTED BY THE OWNER LED TO INSPECTION OF THE OIL SUMP. EIGHT SMALL CRACKS WERE FOUND FROM THE FORWARD DRAIN PLUG, ONLY TWO WERE LEAKING. THE CRACKS HAD ORIGINATED INSIDE THE SUMP AND WERE CAUSED BY CORROSION PITTING.

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