What was found
AIRCRAFT IN BASE MAINTENANCE: WELS BATTERY UNIT WBU 19 FAILED EMERGENCY LIGHT TEST. REPLACED WBU 19.
- Difficulty date
- November 23, 2022
- Submitted
- November 25, 2022
- Operation
- Air carrier
- Aircraft
- N836AA
- Make and model
- Boeing 7879
- Aircraft serial
- 40654
- Aircraft time
- 17,634 hours, 2,149 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 100260207
- Part serial
- 5T20044244
- Condition
- Failed Insp
- Location
- Zone 200 - Fuse
- 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.