Service difficulty report · Window · Boeing 747428F

Difficulty date
June 8, 2026
Submitted
June 9, 2026
Operation
Air carrier
Aircraft
N580UP
Make and model
Boeing 747428F
Aircraft serial
25632
Aircraft time
123,769 hours, 21,173 cycles
Part
Window
Condition
Failed
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

AT CRUISE FL350 CAPTAIN'S NR 1 FORWARD WINDOW OUTER PANE SHATTERED RESULTED IN WINDOW HEAT L STATUS MESSAGE AND HEAT WINDOW L EICAS MESSAGE. REMOVED AND REPLACED LH WINDOW HEAT CONTROLLER PER MM 30-41-01. NEEDS OPS CHECK AFTER WINDSHIELD REPLACEMENT.