What was found
NR 1 RIGHT WINDOW HEAT INOPERATIVE. NO CONTROLLER. REPLACED RIGHT WHCU PER MM. ALSO REPLACED RIGHT WINDOW HEAT SWITCH. GROUND TEST PASS.
- Difficulty date
- September 7, 2012
- Submitted
- September 12, 2012
- Operation
- Air carrier
- Aircraft
- N121UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29167
- Aircraft time
- 56,120 hours, 6,576 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3040 · Windshield/Door Rain/Ice Removal
- Part
- Control Unit
- Part number
- S283U0035
- Part serial
- 52
- Condition
- Inoperative
- Location
- Window Heat
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.