What was found
WELS BATTERY 9.1 FOUND DEGRADED WHILE TROUBLESHOOTING EMERGENCY BATTERY SYSTEM. REMOVED AND REPLACED WELS BATTERY CLASS 9 IAW AMM 33-51-07-02B-520A-A. OPS CHECK GOOD.
- Difficulty date
- February 18, 2025
- Submitted
- February 21, 2025
- Operation
- Air carrier
- Aircraft
- N26902
- Make and model
- Boeing 7878
- Aircraft serial
- 34822
- Aircraft time
- 47,283 hours, 5,900 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 100260201
- Part serial
- ST20044600
- Condition
- No Test
- Location
- Zone 200
- Part time
- 16,863 hours, 2,179 cycles
- 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.