# SDR USAA011022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2001
- Submitted: September 12, 2001
- 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): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Skin
- Location: Bs 500b
- Part time: 31,027 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/USAA011022

## Discrepancy

CLT - FOUND SKIN WITH 1 INCH CUTOUT, PREVIOUSLY INSTALLED DOUBLER, 7 INCHES BY 10 INCHES, BS 500B-500C, AT S22L 23L.  PREVIOUSLY INSTALLED DOUBLER PER SRM 53-00-01 FIG 202.  (M)

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