# SDR USAA2009081792147

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2009
- Submitted: August 18, 2009
- Operation: Air carrier
- Aircraft: N157AW
- Make and model: Boeing 737-3G7
- Registry model: [Boeing 737-3G7](https://openairdocs.org/model/boeing-737-3g7) (OpenAirDocs)
- Aircraft serial: 23779
- Aircraft time: 67,517 hours, 46,545 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: 6552988
- Condition: Corroded
- Location: Fuselage
- 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/USAA2009081792147

## Discrepancy

MCN - C22 - MAJOR REPAIR - CORROSION ON STRINGER 23L AT BS 970.  REPAIRED STRINGER 23L AT BS 970 IAW B737 SRM 53-00-03-2R1.

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