# SDR IPXA2026022323848

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2026
- Submitted: February 26, 2026
- Operation: Air carrier
- Aircraft: [N578UP](https://openairdocs.org/aircraft/N578UP), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 27154
- Aircraft time: 125,972 hours, 21,214 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Seat Track
- Part number: 65B3708630
- Condition: Broken
- 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/IPXA2026022323848

## Discrepancy

FOUND MAIN DECK FLOOR STRUCTURE BROKEN AT STA 2054 RBL 75 (REPAIR).    CUT AND REMOVE THE DAMAGED SEAT TRACK. MAKE THE EDGES OF THE CUT SMOOTH TO 125 MICROINCHES RA OR BETTER. RECORD THE INITIAL SEAT TRACK PN:65B37086-30  INSTALL THE FLOOR PANELS. REFER TO 747-400 AMM 53-21-02/401.

---
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.