What was found
CABIN EMERGENCY LIGHTS BATTERY PACK M33404 FAIL ON DEEP CYCLE PROCEDURE.
- Difficulty date
- April 20, 2025
- Submitted
- April 21, 2025
- Operation
- Air carrier
- Aircraft
- N78003
- Make and model
- Boeing 777224
- Aircraft serial
- 27579
- Aircraft time
- 120,825 hours, 12,566 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.