What was found
AIRCRAFT WAS IN BASE MAINTENANCE: WELS CONTROL UNIT BATTERY POWER SHOWS MAINTENANCE MESSAGE 33-11301. MAINTENANCE REPLACED WELS CONTROL UNIT BATTERY AT DOOR 1L IAW B787 FIM DMC-B787-A-33-50-F1-46A-421A-A.
- Difficulty date
- October 21, 2024
- Submitted
- October 23, 2024
- Operation
- Air carrier
- Aircraft
- N812AA
- Make and model
- Boeing 7878
- Aircraft serial
- 40630
- Aircraft time
- 32,919 hours, 4,467 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 100260201
- Condition
- Faulted
- Location
- Zone 200
- 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.