# SDR IPXA11568429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2011
- Submitted: August 8, 2011
- Operation: Air carrier
- Aircraft: [N401UP](https://openairdocs.org/aircraft/N401UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23723
- Aircraft time: 28,242 hours, 19,490 cycles
- Engine: Pwa PW2040
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 146N51542
- 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/IPXA11568429

## Discrepancy

INSPECTION TYPE:C3, CORROSION ON UPPER SURFACE OF BS 1320 FLOORBEAM AT NUTCLIP HOLR LBL 49.5 WL 208.  REPAIR IAW ER 11-03539, SRM 51-20-01-0G.

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