# SDR EAT2003F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2003
- Submitted: March 3, 2003
- Operation: Air carrier
- Aircraft: [N167SA](https://openairdocs.org/aircraft/N167SA), registered now
- Make and model: Cessna 404
- Registry model: [Cessna 404](https://openairdocs.org/model/cessna-404) (OpenAirDocs)
- Aircraft serial: 4040639
- Engine: Cont GTSIO520F
- System (JASC): [5410 · Nacelle/Pylon, Main Frame](https://openairdocs.org/jasc/5410)
- Part: Spar
- Condition: Damaged
- Location: Lt Nacelle
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EAT2003F00000

## Discrepancy

DURING A REPAIR FOR A EXHAUST BRACKET AND LOWER SKIN REPAIRS ON THE LEFT ENGINE NACELLE HEAT DAMAGE WAS FOUND ON THE LFET FORWARD SPAR BETWEEN WING STA CWS88-10555555.  THIS DAMAGE IS MOST LIKELY DUE TO A CRACKED EXHAUST OUTLET OFF THE TURBO DIRECTING HOT EXHAUST GASES AT THE FACTORY HEAT SHIELD.  THE FORWARD SPAR HAD A ELECTRICAL CONDUCTIVITY TEST DONE AND THE WEB IACS PERCENT WAS BEYOND LIMITS.  A FORWARD WEB SPLICE REPAIR WAS PROVIDED.  THIS DAMAGE LIKELY OCCURRED BEFORE THE EXHAUST AD WAS ISSUED, BUT WAS NEVER FOUND DUE TO THE LIMITED ACCESS TO THIS AREA.

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