What was found
AIRCRAFT IN BASE MAINTENANCE: R3 OVERWING DOOR EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY PACK FAILS TEST. REPLACED EPAS BATTERY PACK AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER AMM 52-12-19.
- Difficulty date
- February 11, 2023
- Submitted
- February 13, 2023
- Operation
- Air carrier
- Aircraft
- N721AN
- Make and model
- Boeing 777323
- Aircraft serial
- 31546
- Aircraft time
- 39,029 hours, 4,491 cycles
- System (JASC)
- 5210 · Passenger/Crew Doors
- Part
- Battery Pack
- Part number
- BPAS105
- Condition
- No Test
- Location
- Zone 800 - Doors
- 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.