Service difficulty report · Defog System · Boeing 777222

Difficulty date
September 12, 2010
Submitted
September 15, 2010
Operation
Air carrier
Aircraft
N229UA
Make and model
Boeing 777222
Aircraft serial
30557
Aircraft time
36,192 hours, 4,411 cycles
Engine
Pwa PW4090
Part
Defog System
Condition
Open
Location
Cockpit Window
Stage of operation
IN
How discovered
9
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

WHC LT SYS TEST FAILED. MESSAGE 30-24031 ACTIVE AND HARD IN FAULT HISTORY CONSECUTIVELY FOR THE LAST 35 LEGS. TROUBLE SHOT REF FIM 30-41 TASK 829. CONTROLLER NO HELP. SENSOR ANTI-FOG (A14) RINGS OUT OPEN. REF WD30-41-01. REF COA 209431. STARTED INSTALLING NEW CAP NR 1 WINDOW IAW MM. FIRST TORQUE 9-11-10 12:50. SEALED OUTSIDE OF WINDOW AND PERFORMED SECOND TORQUE IAW MM.