# SDR USAA040300

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2004
- Submitted: July 27, 2004
- Operation: Air carrier
- Aircraft: N449US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24893
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Skin
- Part number: 6546435273
- Condition: Delaminated
- Location: Lt Te Flap
- Part time: 38,197 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA040300

## Discrepancy

FOUND SKIN DELAMINATED WITH CORROSION 13 INCHES LONG BY 8 INCHES WIDE, LT OUTBOARD AFT FLAP INBOARD T/E TOP SURFACE HEAVY CORE CORROSION.  INSTALLED NEW CORE PER T/R 57-50-39A.  LEVEL 1, TASK NR C57-306-01.  (M)

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