# SDR IPXA2026010783023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2026
- Submitted: January 7, 2026
- Operation: Air carrier
- Aircraft: [N469UP](https://openairdocs.org/aircraft/N469UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25485
- Aircraft time: 36,104 hours, 21,792 cycles
- System (JASC): [5610 · Flight Compartment Windows](https://openairdocs.org/jasc/5610)
- Part: Window
- Condition: Delaminated
- Location: Zone 200
- Stage of operation: CR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2026010783023

## Discrepancy

AT CRUISE FLT AT FL380. L SIDE WINDOW HAD STARTED TO DELAMINATE THE HEATING ELEMENT. FOLLOWED QRH CHECKLIST & WINDOW WAS EXTREMELY HOT TO TOUCH AND APPROX 5IN AREA IS AFFECTED. UPON INSPECTION OF L2 WINDOW, REF AMM 56-11-00-206-068, FOUND BROWN COLORING, GROUPING OF BROWN BUBBLES, AND DELAMINATION ALONG THE BOTTOM AREA OF THE L2 WINDOW. ATTACHED PICTURES. ORDERED L2 WINDOW.  OPEN

---
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.