# SDR IPXA2026051113328

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2026
- Submitted: May 12, 2026
- Operation: Air carrier
- Aircraft: [N428UP](https://openairdocs.org/aircraft/N428UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25459
- Aircraft time: 33,361 hours, 22,894 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 143N534640
- Condition: Cracked
- Location: Zone 100
- 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/IPXA2026051113328

## Discrepancy

FWD CARGO CENTER FLOOR STRINGER UPPER FLANGE BENT AT BS 820.  REFORMED UPPER FLANGE FLOOR STRINGER AT FWD CARGO STA 820 LBL 2.90 IAW B757-200PF SRM 51-00-05-0G-0 AND BAC5300-2. INSTALLED NEW STRINGER  STA 820 LBL 2.90 AND FLOOR SUPPORT STA 845 BETWEEN LBL 23 AND RBL 28 AT FWD CARGO CENTER PER B757-200PF SRM 51-40-02-0G-0.

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