What was found
DURING A MAINTENANCE VISIT, 2 OF 4 RIGHT OVERWING ESCAPE EMERGENCY LIGHTS WERE FOUND TO BE INOPERATIVE. MAINTENANCE FOUND THE POWER SUPPLY F3 FUSE OPEN AND REPLACED IT. SYSTEM OPERATION WAS NORMAL AFTER THE FUSE WAS REPLACED.
- Difficulty date
- May 5, 2011
- Submitted
- May 6, 2011
- Operation
- Air carrier
- Aircraft
- N667US
- Make and model
- Boeing 747451
- Aircraft serial
- 24222
- Aircraft time
- 90,735 hours, 11,132 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Fuse
- Condition
- Open
- 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.