As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EMERGENCY POWER SUPPLY CHECK IAW ALLEGIANT TASK 335100-03-1-001 AFT ENTRY AREA EPSU 13WL FAILED. THE EMERGENCY POWER SUPPLY UNIT 13WL WAS REPLACED IAW A320 AMM 33-51-38-000-001-A AND 33-51-38-400-001-A REV 44 DATE 05-01-2024, THE NEW PART PASS THE TEST. EPSU P/N ON 3214-31 S/N ON 946042.