What was found
DURING A 100 HR INSPECTION-COMPRESSION TEST, FOUND NR 3 CYLINDAER AND NR 5 CYLINDER HEAD CRACKED AT THE TOP OF CYLINDER SLEEVE AT EXHAUST PORT 4 TO 6 INCHES LONG. REPLACED PROT 4 TO 6 INCHES LONG. REPLACED BOTH WITH NEW CYLINDER ASSY. NR 3 CYLINDER, SN 61105-24. NR 5 CYLINDER, SN 61105-22.