What was found
AIRCRAFT WAS NOT GROUNDED: DOOR 4L EMERGENCY LIGHT WOULD NOT COME ON. MAINTENANCE REPLACED WIRELESS BATTERY UNIT PER AMM B787-A-33-51-07-01B-520A-A AND B787-A-33-51-07-01B-720A-A AND PERFORMED SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- March 2, 2019
- Submitted
- March 5, 2019
- Operation
- Air carrier
- Aircraft
- N823AN
- Make and model
- Boeing 7879
- Aircraft serial
- 40641
- Aircraft time
- 9,574 hours, 962 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- 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.