# SDR USAA010822

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2001
- Submitted: August 8, 2001
- Operation: Air carrier
- Aircraft: N439US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24781
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Fuselage
- Part time: 30,946 cycles
- 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/USAA010822

## Discrepancy

PIT - FOUND FLOORBEAM CORRODED 2 INCHES BY 4 INCHES, FLOORBEAM 360 LEFT.  CORROSION LEVEL 1.  REMOVED AREAS OF LIGHT CORROSION, TREATED, PRIMED PER SRM 53-10-15.  (M)

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