What was found
L1 DOOR M33424 EMERGENCY LIGHT BATTERY CAPACITY CHECK FAILED. BATTERY PACK REPLACED AND TESTED NORMAL IAW AMM 33-51-06.
- Difficulty date
- May 19, 2026
- Submitted
- May 20, 2026
- Operation
- Air carrier
- Aircraft
- N78001
- Make and model
- Boeing 777224
- Aircraft serial
- 27577
- Aircraft time
- 126,827 hours, 13,178 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.