What was found
EMERGENCY EXIT LIGHTS ASSOCIATED WITH BATTERY PACK M1669, DID NOT ILLUMINATE. REPLACED POWER SUPPLY BATTERY PACK M1669 ASSOCIATED WITH EMERGENCY LIGHTS AND PERFORMED GOOD TEST PER AMM 33-51-06-960-805. MAINTENANCE COMPLETED.
- Difficulty date
- November 11, 2025
- Submitted
- November 17, 2025
- Operation
- Air carrier
- Aircraft
- N454WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29851
- Aircraft time
- 71,048 hours, 42,440 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Inoperative
- 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.