What was found
(CAN) ENGINE HARD TO START. REMOVED COWLS AND FOUND PRIMER LINE BROKEN, NR 2 CYLINDER, DUE TO FATIGUE. INSPECTED ALL LINES AND FITTINGS. DETERMINED THAT THEY WERE ALL NEARING FATIGUE LEVELS. ALL WERE REMOVED AND REPLACED BY A COMPLETE SET OF LINES, FITTINGS AND CLAMPS IAW PARTS MANUAL.