Service difficulty report · Window · Boeing 747422

Difficulty date
October 27, 2011
Submitted
November 23, 2011
Operation
Air carrier
Aircraft
N117UA
Make and model
Boeing 747422
Aircraft serial
28810
Aircraft time
52,315 hours, 6,352 cycles
Engine
Pwa PW4056
Part
Window
Part number
06372
Part serial
360
Condition
Delaminated
Location
Cockpit L1
Stage of operation
NR
How discovered
9
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

L1 WINDSHIELD HAS MOISTURE INGRESS ON OUTBOARD, UPPER, AND INBOARD SIDES OF WINDOW. WINDOW HAS DELAMINATION ON UPPER AND INBOARD SIDE OF UPPER CORNER. UPPER AND LOWER HUMP SEAL IS DETERIORATED WITH EROSION AND CRACKED. REPLACED 1L WINDOW PER MM.