SDR IPXA2026010783023

Service difficulty report · Window · Boeing 75724APF

Difficulty date: January 7, 2026
Submitted: January 7, 2026
Operation: Air carrier
Aircraft: N469UP
Make and model: Boeing 75724APF
Aircraft serial: 25485
Aircraft time: 36,104 hours, 21,792 cycles
System (JASC): 5610 · Flight Compartment Windows
Part: Window
Condition: Delaminated
Location: Zone 200
Stage of operation: CR
How discovered: V
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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

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