What was found
DURING EPSU BATT CAPACITANCE CHK, FAULT 3350F00C OCCURRED. REPLACED EPSU (101WL4) REF A350 AMM 33-51. TEST OK. (LP# 6986180)
- Difficulty date
- April 30, 2025
- Submitted
- May 5, 2025
- Operation
- Air carrier
- Aircraft
- N521DN
- Make and model
- Airbus A350941
- Aircraft serial
- 0661
- Aircraft time
- 4,756 hours, 360 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- 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.