What was found
DURING OVERNIGHT LINE CHECK FOUND UPPER DECK, LEFT SIDE, EMERGENCY POWER RESERVOIR LIGHT INOP. MAINTENANCE REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECKED GOOD, AND AIRCRAFT WAS RETURNED TO SERVICE.
- Difficulty date
- December 19, 2009
- Submitted
- December 22, 2009
- Operation
- Air carrier
- Aircraft
- N670US
- Make and model
- Boeing 747451
- Aircraft serial
- 24225
- Aircraft time
- 84,891 hours, 10,368 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- 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.