# SDR 2000ZZZX404

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N4708T
- Make and model: Beech A23A
- Registry model: [Beech A23A](https://openairdocs.org/model/beech-a23a) (OpenAirDocs)
- Aircraft serial: M10104
- Engine: Cont IO346A
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Rod Bearing
- Condition: Worn
- Location: Engine
- Part time: 3,153 hours
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2000ZZZX404

## Discrepancy

IN-FLIGHT, NR 3 CONNECTING ROD BEARING FAILED POSSIBLY DUE TO WEAR.  EXCESSIVE HEAT AND EXPANSION BUILD-UP AROUND THE NR 3 CONNECTING ROD CRANKPIN AND CAUSING THE ROD BOLTS TO BREAK APART AT THE SHANK.  THE NR 3 CONNECTING ROD IS CONNECTED FROM THE CRANKSHAFT CAUSING COMPLETE ENGINE FAILURE.  SUBMITTER STATED THE ENGINE WAS OPERATING 93 HOURS OVER THE MANUFACTURER'S RECOMMENDED OVERHAUL TIME.

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