Service difficulty report · Window · Boeing 747422

Difficulty date
July 23, 2013
Submitted
July 25, 2013
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
92,736 hours, 11,015 cycles
Engine
Pwa PW4056
Part
Window
Condition
Damaged
Location
R3
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

R3 WINDOW DELAMINATED, BUBBLE BETWEEN LAYERS IN LOWER RT CORNER. INSPECTED R3 WINDOW IAW MM, ONE BUBBLE RT CORNER MEASURED 2 X .250 AT NON CRITICAL VISION AREA. BUBBLE IS CLEAR & NOT BLACK OR DARK BROWN. ACCOMPLISHED R3 WINDOW HEATER CONTROL SYS TEST IAW MM, TESTED GOOD.