What was found
DURING HEAVY MAINTENANCE, EPSU 12WL FOUND NOT WORKING DURING OPERATIONAL CHECKS; REF LHT NR 005000866220-0010. R & R EPSU 12WL IAW AMM 33-51-38-400-002-A OPS CK'D OAW AMM 33-51-38-710-052-B. CK'S GOOD.
- Difficulty date
- March 28, 2019
- Submitted
- April 1, 2019
- Operation
- Air carrier
- Aircraft
- N945JT
- Make and model
- Airbus A321231
- Aircraft serial
- 6390
- Aircraft time
- 19,299 hours, 3,710 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- 321431
- Part serial
- 774107
- Condition
- Failed
- Location
- 12wl
- Part time
- 19,299 hours, 3,710 cycles
- 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.