# SDR IPXA2573125

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2012
- Submitted: April 25, 2012
- Operation: Air carrier
- Aircraft: [N458UP](https://openairdocs.org/aircraft/N458UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25479
- Aircraft time: 22,145 hours, 14,023 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 146N51721
- Condition: Corroded
- Location: Bs 1681
- 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/IPXA2573125

## Discrepancy

INSPECTION TYPE: C, MAIN CARGO BAY BS 1680, LBL 40, UNDER SHEAR WEB, FLOORBEAM, UNDER FORWARD FLANGE IS CORRODED AT NUTPLATE.  REMOVED CORROSION, ORIG THICKNESS .160, LOSS .046, REMAINING .114. FABRICATED AND INSTALLED REPAIR IAW SRM 53-60-51-2R 4.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.