What was found
WHITE SMOKE COMING FROM AROUND APU ACCESS DOORS AND THE OUTSIDE OF THE APU EXHAUST PIPE CONTINUED FOR SEVERAL MINUTES AFTER APU SHUT DOWN. INSPECTED APU AREA FOR ANY FUEL OR OIL LEAKS, NONE FOUND. RAN APU TO VERIFY NO LEAKS. UPON FURTHER INVESTIGATION, FOUND DEICE FLUID ON APU COMPARTMENT. CLEANED DEICE FLUID AND RAN APU AGAIN. NO SMOKE NOTED. NO FURTHER DEFECTS. ACFT OK FOR SERVICE. NO PARTS REPLACED.