What was found
REFERENCE LP 672850 #1, AIRCRAFT WAS NOT GROUNDED. DURING HEAVY CHECK FAILED 12WL EPSU UNIT FAULT ON ECAM AND UNIT FAULT. REPLACED 12WL EPSU UNIT REF AMM 33-51-38-000-001-A & 33-51-400-001-A OPS CHECK GOOD. A/C OK FOR SERVICE.
- Difficulty date
- July 20, 2026
- Submitted
- July 21, 2026
- Operation
- Air carrier
- Aircraft
- N636FR
- Make and model
- Airbus A321271NX
- Aircraft serial
- 11839
- Aircraft time
- 7,244 hours, 3,350 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32146210
- Part serial
- 184102
- Condition
- No Test
- Location
- Zone 200
- Part time
- 7,244 hours, 3,350 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.