# SDR IPXA09556730

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2009
- Submitted: July 22, 2009
- 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: 26,644 hours, 18,328 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 144N5007
- Condition: Cracked
- Location: Bs 1020
- 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/IPXA09556730

## Discrepancy

INSPECTION TYPE:  C2 FOUND CRACKS AND PULLED THROUGH RIVETS ON TOP OF FLOOR SUPPORT (HAT CHANNEL) BETWEEN RBL 24.75 AND BL 0 AT STA 1020.  REMOVED AND REPLACED FLOOR SUPPORT DOUBLER.

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