# SDR 97ZZZX4537

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Boeing 727
- Registry model: [Boeing 727](https://openairdocs.org/model/boeing-727) (OpenAirDocs)
- System (JASC): [7110 · Engine Cowling System](https://openairdocs.org/jasc/7110)
- Part: Cowling
- Condition: Corroded
- Location: Eng Nr 1-Nr 3
- 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/97ZZZX4537

## Discrepancy

SEVERE CORROSION UNDER FIRESHIELD.  FIRESHIELD MUST BE REMOVED TO DETECT OR REPAIR.  CORROSION DAMAGE CAUSED BY FAILURE OF BOND ALLOWING MOISTURE TO ENTER.

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