What was found
AIRCRAFT IN BASE MAINTENANCE - BATTERY DISCHARGED, R1 DOOR EPSU (EMERGENCY POWER SUPPLY UNIT), M33094. REMOVED AND REPLACED BATTERY PACK, EPSU M33094, PER AMM 33-51-06, OPERATIONAL CHECK GOOD.
- Difficulty date
- July 13, 2020
- Submitted
- July 21, 2020
- Operation
- Air carrier
- Aircraft
- N784AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29588
- Aircraft time
- 81,023 hours, 9,772 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- D71701100
- Part serial
- 47950
- Condition
- Discharged
- Location
- Emergency Light
- 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.