What was found
AIRCRAFT WAS GROUNDED, R1 DOOR EMERGENCY POWER SUPPLY UNIT M33094, BATTERY PACK DRAINED. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK POWER SUPPLY ASSEMBLY ABOVE R1 DOOR IAW AMM 33-51-06.
- Difficulty date
- August 6, 2020
- Submitted
- August 7, 2020
- Operation
- Air carrier
- Aircraft
- N772AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29580
- Aircraft time
- 84,236 hours, 10,703 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- D71702001
- Condition
- Failed
- 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.