# SDR 96ZZZX4315

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N1493V](https://openairdocs.org/aircraft/N1493V), registered now
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft serial: 17263623
- Engine: Lyc O320E2D
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Connectiing Rod
- Part number: 78027
- Condition: Bolt Failed
- Location: Nr 1 Cylinder
- Part time: 1,301 hours
- Stage of operation: CR
- Nature of condition: E, R, K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX4315

## Discrepancy

ENGINE FAILED IN-FLIGHT WITH LOUD BANG.  AIRPLANE FORCE LANDED ON ROAD.  INSPECTION REVEALED NR 1 CYLINDER ROD HAD COME LOOSE FROM CRANK AND PUNCHED HOLE IN BOTTOM OF CASE.  INSPECTION OF ENGINE FOUND CONNECTING ROD BOLTS, P/N 78027, ON NR 1 AND NR 4 CYLINDERS' CONNECTING RODS HAD BROKEN IN HALF.

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