# SDR IPXA2026011963930

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2026
- Submitted: February 4, 2026
- Operation: Air carrier
- Aircraft: [N411UP](https://openairdocs.org/aircraft/N411UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23851
- Aircraft time: 39,473 hours, 26,446 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Seat Track
- Part number: 141N5810
- 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/IPXA2026011963930

## Discrepancy

CAP SEAT TRACKS HAVE EVIDENCE OF CORROSION (AFT I/B EXFOLIATED) MARKED AREAS.  REMOVED CORROSION LOCATED ON MAIN DECK FLOOR SHEAR UNDER SEAT TRACK. LBL13.0 AND 20'' UPPER STA278.0 O.T: .050''. MAT LOSS:0.035''. L:0.7'', W:0.7'' REWORK WAS FOUND OUT OF LIMITS IAW B757-200 SRM 51-10-51-1A-1 AD1 TABLE 102. COMPLETED INSTALLATION OF CAP SEAT TRACKS IAW AMM 25-11-01-822-078 AND SRM 51-40-04-0G-0 T86486 AND T82405.

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