What was found
CATASTROPHIC FAILURE AFTER TAKEOFF FROM CLEAR LAKE, CA ON 5-14-97. PILOT TURNED BACK AND MADE UNPOWERED LANDING AT AIRPORT. FOUND CYLINDER BROKEN OFF ENGINE. PISTON BROKEN, CRANKSHAFT BROKEN. PISTON PIN BROKEN IN HALF.
- Difficulty date
- May 14, 1997
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N739ZL
- Make and model
- Cessna 172N
- Aircraft serial
- 17270936
- Engine
- Lyc O320H2AD
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Piston Pin
- Part number
- SL134441
- Condition
- Failed
- Location
- Engine Cylinder
- Stage of operation
- CL
- Nature of condition
- Y
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.