# SDR USAA2009110292994

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2009
- Submitted: November 3, 2009
- Operation: Air carrier
- Aircraft: [N902AW](https://openairdocs.org/aircraft/N902AW), registered now
- Make and model: Boeing 757-2S7
- Registry model: [Boeing 757-2S7](https://openairdocs.org/model/boeing-757-2s7) (OpenAirDocs)
- Aircraft serial: 23322
- Aircraft time: 85,204 hours, 32,090 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 146N52467
- 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/USAA2009110292994

## Discrepancy

MCN - MAJOR REPAIR - C4 CHECK - GALVANIC CORROSION ON L-4 DOOR THRESHOLD FLOOR SUPPORT BS 1640 - BS 1661,  LBL 55.  REPLACED L-4 DOOR THRESHOLD FLOOR SUPPORT BS 1640 - BS 1661,  LBL 55 IAW B757 SRM 51-40-02.

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