What was found
BATERRY PACK M2503 FAIL DURING EMERGENCY LIGHTING SYSTEM FUNCTIONAL CHECK. REMOVED AND INSTALLED NEW BATTERY PACK (M2503). OPS CHECK GOOD IAW AMM 33-51-06-906-805.
- Difficulty date
- November 30, 2025
- Submitted
- December 2, 2025
- Operation
- Air carrier
- Aircraft
- N38443
- Make and model
- Boeing 737900ER
- Aircraft serial
- 31655
- Aircraft time
- 46,481 hours, 16,796 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- ADD71701100
- Condition
- Discharged
- 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.