What was found
AIRCRAFT IN BASE MAINTENANCE: L4 EMERGENCY POWER ASSIST SYSTEM AMBER LIGHT FLICKERING. REMOVED AND REPLACED MODE SELECT SWITCH S52121.
- Difficulty date
- February 18, 2023
- Submitted
- February 22, 2023
- Operation
- Air carrier
- Aircraft
- N721AN
- Make and model
- Boeing 777323ER
- Aircraft serial
- 31546
- Aircraft time
- 39,029 hours, 4,491 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Switch
- Part number
- 624EN334R
- Condition
- Inoperative
- Location
- Zone 800 - Doors
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.