What was found
DURING HEAVY CHECK EPSU BATTERY (1001WL) FWD L FAILED EMER TEST. AIRCRAFT WAS GROUNDED. REMOVED AND REPLACED EPSU BATTERY (1001WL) FWD L IAW AMM 33-51-38-000-003-A/33-51-38-400-003-A. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE.
- Difficulty date
- May 31, 2026
- Submitted
- June 2, 2026
- Operation
- Air carrier
- Aircraft
- N674FR
- Make and model
- Airbus A321271NX
- Aircraft serial
- 12946
- Aircraft time
- 1,047 hours, 477 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 2A52210000000
- 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.