# SDR USAA2009080492011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2009
- Submitted: August 4, 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): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 65498852
- 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/USAA2009080492011

## Discrepancy

MCN - C22 - MAJOR REPAIR - CORROSION ON EXISTING REPAIR LOWER SURFACE OF TRANSVERSE FLOORBEAM AT BS 986.5, WL 204.1, LBL 43.  REMOVED EXISTING REPAIR AND INSTALLED NEW TEE ANGLE REPAIR IAW B737 SRM 53-00-51-00-2R2.

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