What was found
(LW5R) 4 CYLINDER ASSEMBLIES WERE INSTALLED AT ENGINE TT OF 5324.4 HRS. CYLINDER NR 2 FAILED COMPRESSION TESTING AT ENGINE TT OF 5757.1 AND A CRACK IN THE CYLINDER HEAD NEAR THE EXHAUST VALVE WAS DISCOVERED. THE CYLINDER HAD 432.7 TIS ON THIS ENGINE. 4 PISTON PINS (PN LW13445) AND 8 PISTON PIN PLUGS (PN SL 11625) WERE INSTALLED AT THE SAME TIME AS THE CYLINDER ASSEMBLIES. AT CYLINDER REMOVAL, 1 PISTON PIN PLUG IN THE NR 2 CYLINDER WAS SIGNIFICANTLY WORN AND SCORING WAS FUND ON THE CYLINDER WALL.