# SDR IPXA2572031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2012
- Submitted: March 5, 2012
- Operation: Air carrier
- Aircraft: [N456UP](https://openairdocs.org/aircraft/N456UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25477
- Aircraft time: 13,954 hours, 23,080 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 144N50053
- Condition: Corroded
- Location: Bs 1055 Rbl 41
- 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/IPXA2572031

## Discrepancy

INSPECTION TYPE:C,  MAIN CARGO COMPARTMENT RT SIDE BS 1055, RBL 41 AT FLOOR SUPPORT HAS (2) AREAS OF CORROSION AT SCREW HOLES.  REMOVED CORROSION, ORIGINAL MATERIAL THICKNESS .050 100 PERCENT MATERIAL LOSS AT FASTENER HOLE FABRICATED AND REPLACED FLOOR SUPPORT IAW DWG 144N5005 AND CMM 9-10 INSTALLED NEW SUPPORT IAW SRM 51-40-02.

---
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.