What was found
EMERGENCY LIGHT BATTERY M1669 FAILED A CAPACITY CHECK & REQUIRES REPLACEMENT. REPLACED EMERGENCY BATTERY M1669, OPS CHECKED GOOD IAW MM 33-51-06-200-801.
- Difficulty date
- December 16, 2025
- Submitted
- December 18, 2025
- Operation
- Air carrier
- Aircraft
- N21723
- Make and model
- Boeing 737724
- Aircraft serial
- 28790
- Aircraft time
- 81,807 hours, 29,227 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- ADD71701100
- Condition
- No Test
- 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.