What was found
(CAN) DURING A STABLE ILS APPROACH , AROUND 700 FT RA, THE AUTO-THROTTLE WENT IN RETARD MODE. BEFORE IT HAPPENED ALL WAS FINE, ILS FREQUENCY WAS INSERTED VIA FMS WITH THE ILS IDENTIFIER IAW ADVISORY WIRE, DUE TO WIND, ALSO, VREF+10 WAS APPLIED ACCORDING AFM. NO RELATED CAS MESSAGES POSTED. WHEN PILOT REALIZED THAT THE SPEED WAS DROPPING FAST, HE ACTIVATED THE GO AROUND MODE TO HAND-FLOWN, THE ACFT RECOVERING THE G/S AND THE SPEED. ACFT LANDED WITHOUT ANY DIFFICULTIES.