What was found
DURING OVERNIGHT CHECK, FOUND EMERGENCY PATH LIGHT AT ZONE C LEFT WILL NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED POWER SUPPLY AND BATTERY PACK. OPERATIONAL CHECKED GOOD AND AIRCRAFT RETURNED TO SERVICE.
- Difficulty date
- July 31, 2007
- Submitted
- August 1, 2007
- Operation
- Air carrier
- Aircraft
- N669US
- Make and model
- Boeing 747451
- Aircraft serial
- 24224
- Aircraft time
- 74,206 hours, 9,047 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Inoperative
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.