What was found
AIRCRAFT WAS GROUNDED: MID CABIN EMERGENCY POWER SUPPLY UNIT M33404 TEST BUTTON INOPERATIVE. REMOVED AND REPLACED EMERGENCY POWER SUPPLY M33404 OPERATIONAL CHECK GOOD PER AMM 33-51-06-960-803.
- Difficulty date
- August 24, 2020
- Submitted
- August 25, 2020
- Operation
- Air carrier
- Aircraft
- N796AN
- Make and model
- Boeing 777223
- Aircraft serial
- 30796
- Aircraft time
- 77,235 hours, 9,777 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- D71702001
- Part serial
- 120644
- 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.