What was found
DOOR 4L EMER LIGHT BATTERY M33407 CAPACITY CHECK FAIL. DOOR 4L EMER LT BATTERY M33407 REPLACE AND TEST NORMAL IAW AMM 33-51-06.
- Difficulty date
- January 7, 2026
- Submitted
- January 7, 2026
- Operation
- Air carrier
- Aircraft
- N27015
- Make and model
- Boeing 777224
- Aircraft serial
- 28678
- Aircraft time
- 118,576 hours, 12,175 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- 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.