What was found
EMERGENCY LIGHT BATTERY PACK M1670 FAILS CAPACITY CHECK.EMERGENCY LIGHTING SYSTEM FUNCTIONAL CHECK. REPLACED EMERGENCY LIGHT BATTERY PACK M1670. OP CKS GOOD.
- Difficulty date
- September 11, 2025
- Submitted
- September 15, 2025
- Operation
- Air carrier
- Aircraft
- N39726
- Make and model
- Boeing 737724
- Aircraft serial
- 28796
- Aircraft time
- 76,202 hours, 26,793 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- ADD71701100
- 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.