What was found
ONE MINUTE PRIOR TO LANDING, AIR CONDITIONING TEMPERATURE INCREASED AND CABIN FILLED WITH SMOKE. TURNED OFF BOTH AIR CONDITIONING PACKS, DID NOT START THE APU. ACCOMPLISHED AN OPERATIONAL CHECK OF BOTH AIR CONDITIONING PACKS, CYCLING TEMPS HOT TO COLD BUT NO SMELL OR SMOKE NOTED. OPERATIONAL CHECK WAS NORMAL. CHECK-C 8-11-99 JFK.