What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTS MESSAGE DISAGREES WITH ARMED SWITCH POSITION. THE SWITCH GUARD SEEMS TO FLIP THE SWITCH TO OFF WHEN ARMING. REPLACED SWITCH GUARD PER AMM 33-51-00.
- Difficulty date
- August 31, 2021
- Submitted
- September 1, 2021
- Operation
- Air carrier
- Aircraft
- N731AN
- Make and model
- Boeing 777323
- Aircraft serial
- 33523
- Aircraft time
- 27,030 hours, 3,079 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Guard
- Condition
- Faulty
- Location
- Light Switch
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.