As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SMOKE AVIONICS ECAM MESSAGE APPEARED DURING POWER TRANSFER FROM GROUND POWER UNIT TO ACFT WHILE AT THE GATE. NO ASSOCIATED SMOKE OR FUMES PRESENT. PASSENGERS DEPLANED. DISPATCH AND MAINTENANCE NOTIFIED. INLET SKIN AIR VALVE R & R IAW AMM 21-26-52, PB401, OPS TEST IAW AMM 21-26-00-710-001A.