What was found
DURING LINE CHECK FOUND UPPER DECK, LEFT SIDE, EMERGENCY POWER SYSTEM INOP. MAINTENANCE REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECKED GOOD, AND AIRCRAFT WAS RETURNED TO SERVICE.
- Difficulty date
- December 7, 2009
- Submitted
- December 8, 2009
- Operation
- Air carrier
- Aircraft
- N663US
- Make and model
- Boeing 747451
- Aircraft serial
- 23818
- Aircraft time
- 87,843 hours, 11,476 cycles
- System (JASC)
- 5220 · Emergency Exits
- Part
- Battery Pack
- Condition
- Discharged
- Location
- Cabin
- 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.