What was found
L1 WINDOW HEAT ARCING, FOUND TERMINAL AT WINDOW 1L POS A BURNED AND MELTED INSULATOR BLOCK, REPLACED CONTACT. REMOVED WINDOW 1L.
- Difficulty date
- December 1, 2011
- Submitted
- December 2, 2011
- Operation
- Air carrier
- Aircraft
- N127UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28813
- Aircraft time
- 49,555 hours, 5,863 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3097 · Ice/Rain Protection System Wiring
- Part
- Terminal
- Condition
- Arced
- Location
- Window Heat
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.