# SDR 99ZZZX4605

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N4057Q
- Make and model: Cessna 401A
- Registry model: [Cessna 401A](https://openairdocs.org/model/cessna-401a) (OpenAirDocs)
- Aircraft serial: 401A0109
- System (JASC): [7810 · Engine Collector/Tailpipe/Nozzle](https://openairdocs.org/jasc/7810)
- Part: Exhaust Pipe
- Part number: 085071123
- Condition: Cracked
- Location: Lt Engine
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX4605

## Discrepancy

LEFT EXHAUST TAIL PIPE WAS FOUND CRACKED AND A PIECE OF THE PIPE APPROXIMATELY 2 INCHES BY 2.50 INCHES WAS MISSING.  IT APPEARED THE CRACKING WAS MOST LIKELY  CAUSED BY VIBRATION.  EXHAUST GAS LEAKING FROM THIS TAIL PIPE CAN CAUSE DAMAGE TO THE WING SPAR.

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