What was found
ON SHORT FINAL: ACRID BURNING SMELL ACCOMPANIED BY VENT BLOWER FAULT ECAM. NO SMOKR WAS OBSERVED.PLACED VENT BLOWER SWITCH TO OVRD SMELL DISSIPATED. SMELL PRECEDED BY A GROANING SOUND. REPLACED AVIONICS VENT BLOWER FAN PER A321 AMM 21-26. ALL CHKS GOOD.(606578). FOUND OVEN 104 WENT TO HIGH TEMP WITH SERVICE MOTOR MCU MESSAGED, REMOVED AND REPLACED OVEN PER A321 AMM 25-35 . REPLACED AVIONICS VENT FILTER REF A321 AMM 21-26. NO GO ODI C/ W. (LP# 9593424)