# SDR USAA050175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2005
- Submitted: February 28, 2005
- Operation: Air carrier
- Aircraft: N521AU
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 23856
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Fuselage
- Part time: 52,728 hours
- 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/USAA050175

## Discrepancy

PIT - FOUND FLOORBEAM CORRODED .5 INCH BY .5 INCH AREAS AROUND 6 NUTPLATES, FLOORBEAM STATION 967 17L-17R.  TOP CP REPAIR, FLOOR EXTRUSION AND SPLICES PER TYPICAL REPAIR 53-10-05B.  (M)

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