What was found
DURING A MAINTENANCE VISIT, THE 4L DOOR EMERGENCY LIGHT OF POWER SUPPLY WAS FOUND TO BE WEAK. MAINTENANCE REPLACED THE BATTERY PACK. SYSTEM OPERATION WAS NORMAL AFTER THE BATTERY PACK WAS REPLACED.
- Difficulty date
- January 23, 2012
- Submitted
- January 25, 2012
- Operation
- Air carrier
- Aircraft
- N863DA
- Make and model
- Boeing 777232
- Aircraft serial
- 29735
- Aircraft time
- 54,173 hours, 6,888 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Discharged
- Location
- Cabin
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.