What was found
EMERGENCY BATTERY PACK M1670 LIGHTS DID NOT TURN ON. REMOVED AND REPLACED BATTERY PACK IAW AMM 33-51-06. REMOVED AND REPLACED BATTERY PACK IAW AMM 33-51-06.
- Difficulty date
- June 10, 2026
- Submitted
- June 23, 2026
- Operation
- Air carrier
- Aircraft
- N478WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33989
- Aircraft time
- 71,646 hours, 43,008 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.