What was found
DURING A MAINTENANCE VISIT, THE EMERGENCY EXIT SIGN AT DOOR R3 LOWER WAS FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE POWER SUPPLY FUSE. SYSTEM OPERATION WAS NORMAL AFTER THE FUSE WAS REPLACED.
- Difficulty date
- February 28, 2012
- Submitted
- March 1, 2012
- Operation
- Air carrier
- Aircraft
- N669US
- Make and model
- Boeing 747451
- Aircraft serial
- 24224
- Aircraft time
- 92,815 hours, 11,377 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Fuse
- Condition
- Blown
- Location
- Power Supply
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.