# SDR IPXA2025102887933

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2025
- Submitted: November 18, 2025
- Operation: Air carrier
- Aircraft: [N457UP](https://openairdocs.org/aircraft/N457UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25478
- Aircraft time: 38,127 hours, 22,636 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 146N52381
- Condition: Corroded
- Location: Zone 200
- 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/IPXA2025102887933

## Discrepancy

MAJOR REPAIR - MDC, BS 1680, FLOOR STR HAS EVIDENCE OF CORROSION AROUND 3EA SCREW HOLES, BTW BL0 AND LBL 24.75.   PERMANENT REPAIR ACCOMPLISHED IAW UPS EO: EO-95421-REQ 1 AND VT MAE EA 757-5360-27-A4175 REV-.

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