What was found
AIRCRAFT WAS NOT GROUNDED: FOUND EMERGENCY POWER ASSIST SYSTEM BATTERY PACK WITH GREEN LIGHT TEST INOPERATIVE. REMOVED AND REPLACED EMERGENCY POWER ASSIST SYSTEM BATTERY PACK DOOR 4R, OPERATIONAL TEST OK PER AMM 52-11-20-401
- Difficulty date
- October 21, 2021
- Submitted
- October 22, 2021
- Operation
- Air carrier
- Aircraft
- N770AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29578
- Aircraft time
- 85,058 hours, 10,757 cycles
- System (JASC)
- 5210 · Passenger/Crew Doors
- Part
- Battery Pack
- Part number
- 285W0955102
- 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.