What was found
B777-33-3-7015 DR 3L M33400 EMER LT BATTERY CAPACITY CHECK FAIL REF HX NR WO 515644, ORIG BY V898181 DR 3L M33400 EMER LT BATTERY REPLACED AND TESTED NORMAL AS PER A MM 33-51-00 ACCOMPLISHED BY MECH V934240, INSP V896958
- Difficulty date
- February 18, 2022
- Submitted
- February 21, 2022
- Operation
- Air carrier
- Aircraft
- N221UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30552
- Aircraft time
- 79,992 hours, 9,529 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- D71701100
- Part serial
- 77986
- Condition
- Failed
- Location
- Dr 3l M33400
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.