SDR 99ZZZX4684

Service difficulty report · Rod · Cessna 120

Difficulty date: November 29, 1999
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N76470
Make and model: Cessna 120
Aircraft serial: 10902
Engine: Cont C8512F
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Rod
Condition: Failed
Location: Nr 4 Cylinder
Stage of operation: NR
Nature of condition: R, J
Precautionary procedure: O

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

What was found

PILOT REPORTED LOSS OF OIL PRESSURE. THIS WAS FOLLOWED BY ABNORMAL ENGINE SOUNDS. UPON INSPECTION, THE ENGINE TURNED FREELY, THE CABLE WAS FOUND CRACKED ABOVE THE NR 4 CYLINDER. CRACK APPEARS TO HAVE BEEN CAUSED BY A BROKEN CONNECTING ROD.

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