What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTNING SYSTEM TEST ZONE AT 3L WOULD NOT ILLUMINATE DOOR EXIT SIGN. MAINTENANCE REPLACED POWER SUPPLY PER STANDARD PRACTICES AND PERFORMED SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- June 7, 2019
- Submitted
- June 10, 2019
- Operation
- Air carrier
- Aircraft
- N753AN
- Make and model
- Boeing 777223
- Aircraft serial
- 30261
- Aircraft time
- 72,754 hours, 9,065 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- No Test
- 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.