What was found
REF TC 356247-01-1-R3 DURING OPS CK EPSU TEST FAULTED 11WL-R/R (11WL) EPSU BATTERY IAW AMM 33-51-38. OPS CK GOOD.
- Difficulty date
- November 15, 2025
- Submitted
- November 17, 2025
- Operation
- Air carrier
- Aircraft
- N664NK
- Make and model
- Airbus A321231
- Aircraft serial
- 7021
- Aircraft time
- 31,432 hours, 13,970 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Epsu
- Part number
- 321431
- Part serial
- 933086
- Condition
- Inoperative
- Location
- Zone 200
- Part time
- 2,230 hours, 1,080 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.