What was found
AIRCRAFT MADE EMERGENCY LANDING DUE TO MASSIVE OIL LEAK FROM ENGINE. UPON LANDING, PILOT CHECKED THE ENGINE OIL AND STATED DIPSTICK SEEMED TO BE LOOSE. ACFT WAS MOVED INTO A HANGAR, THE COWLING REMOVED, AND THE ENGINE WASHED DOWN. INSPECTION REVEALED NO VISIBLE ENGINE DEFECTS. A BREATHER CHECK WAS PERFORMED AND FOUND SATISFACTORY.