# SDR 98ZZZX2804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N409EX
- Make and model: Cessna 404CESSNA
- Aircraft serial: 4040436
- Engine: Cont GTSIO520M
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Bolts
- Condition: Failed
- Location: Crankcase
- Part time: 159 hours
- 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/98ZZZX2804

## Discrepancy

TRU-BOLTS (UPPER  TWO) AND UPPER TWO CYLINDER HOLD-DOWN STUDS FOUND BROKEN ON NR 6 CYLINDER OF THE NR 1 ENGINE.  CAUSED EXHAUST STACK TO BREAK AT FLANGE.  EXHAUST GAS DAMAGED CROSS MEMBER OF ENGINE CRADLE, PROP GOVERNOR, COWLING AND IGNITION HARNESS.

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