As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"EMERG TEST" P/BSW (25WL) DOES NOT ILLUMINATE & EMERGENCY LIGHTS REMAIN ILLUMINATED WHEN TEST CYCLE IS ENERGIZED. FACT 14DEC23 14:10 MSN U AMM: 33-51-14-04-0 RED LED FAULT LIGHT ILLUMINATED ON EPSU REMOVED AND REPLACED POWER SUPPLY UNIT (29WL) IAW A300-600 AMM 33-51-14-04-0. OPS CHECKS NORMAL. EMERGENCY POWER SUPPLY BATTERY, AERO DESIGN INC, P/N AD-3214-31, S/N 246255