What was found
DURING OVERNIGHT CHECK FOUND UPPER DECK COCKPIT EMERGENCY LIGHT WILL NOT TEST. MAINTENANCE REMOVED AND REPLACED POWER SUPPLY. OPERATIONAL CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (A)
- Difficulty date
- July 4, 2008
- Submitted
- August 1, 2008
- Operation
- Air carrier
- Aircraft
- N646NW
- Make and model
- Boeing 747222B
- Aircraft serial
- 23737
- Aircraft time
- 72,108 hours, 9,355 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part serial
- MX53159
- Condition
- Inoperative
- Location
- Emergency Lights
- 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.