What was found
DURING A ROUTINE 100 HR INSPECTION A CYLINDER COMPRESSION TEST WAS PERFORMED ON THE ENGINE USING SOAP FOR VISUAL INSPECTION AND DURING THAT CHECK IT WAS FOUND THAT THE NR 3 CYLINDER (SN 4847) WAS LEAKING OUT OF THE TOP OF THE CYLINDER HEAD BETWEEN FINS ON THE EXHAUST SIDE. UPON FURTHER INSPECTION A SMALL CRACK CAN BE SEEN BETWEEN THE FINS ON THAT SIDE. THE CYLINDER IS NOW BEING CHANGED WITH AN O/H CYLINDER. ALL OTHER CYLINDERS WILL BE COMPRESSION AND VISUALLY CHECKED AT 50 HR INTERVALS UNTIL TBO. (K)