What was found
DURING OVERNIGHT CHECK, FOUND UPPER DECK AFT EMERGENCY SIGN INOP. MAINTENANCE REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECKED GOOD, AND AIRCRAFT WAS RETURNED TO SERVICE.
- Difficulty date
- June 9, 2009
- Submitted
- June 10, 2009
- Operation
- Air carrier
- Aircraft
- N662US
- Make and model
- Boeing 747451
- Aircraft serial
- 23720
- Aircraft time
- 85,057 hours, 10,923 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.