What was found
AIRCRAFT IN BASE MAINTENANCE: DOOR 5 LH EMERGENCY BATTERY PACK (M33407) FAILED ON BATTERY CAPACITY CHECK. MAINTENANCE REPLACED DOOR 5 LH EMERGENCY BATTERY PACK (M33407) PER AMM 33-51-06 REV 262 APR 23, 2026.
- Difficulty date
- May 15, 2026
- Submitted
- May 18, 2026
- Operation
- Air carrier
- Aircraft
- N718AN
- Make and model
- Boeing 777323ER
- Aircraft serial
- 41665
- Aircraft time
- 48,088 hours, 5,598 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- D71701100
- Part serial
- 397152
- 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.