What was found
AIRCRAFT WAS GROUNDED: VOMIT SMELL COMING FROM AIRCRAFT AIR CONDITIONING SYSTEM. WHILE ACCOMPLISHING TROUBLE SHOOTING OF SOF EVENT FOUND RECIRCULATION FAN FILTERS TO BE DIRTY AND FOUND RECIRCULATION FAN INSULATION BLANKETS COVERED IN UNKNOWN LIQUID. REMOVED AND REPLACED RECIRCULATION AIR FILTERS (AALA202603109798), PER AMM 21-35-01. ALSO, RMOVED AND REPLACED INSULATION BLANKET (AALA202603100296) ON FORWARD CARGO AFT BULKHEAD, PER AARD 25-80-00-3. OPS CHECK FOR LEAK ON FORWARD GALLEY AND NO LEAK FOUND.