What was found
EMERGENCY LIGHTS AT L4 ARE INOPERATIVE. REPLACED BATTERY AND POWER SUPPLY. SYSTEM OPERATION IS NORMAL
- Difficulty date
- July 20, 2020
- Submitted
- July 23, 2020
- Operation
- Air carrier
- Aircraft
- N860DA
- Make and model
- Boeing 777232
- Aircraft serial
- 29951
- Aircraft time
- 91,854 hours, 11,459 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- Inoperative
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.