What was found
(CAN) DURING INSP, IT WAS DISCOVERED THAT NR 2 CYL HAD LOW COMPRESSION, VALVE COVER WAS REMOVED AND IT APPEARED LEAK WAS COMING FROM EXHAUST VALVE SPRING. CYL WAS REMOVED ALONG WITH VALVES, FURTHER INSP REVEALED THAT EXHAUST PORT HSG WAS CRACKED. CYL ASSY WAS SCRAPED AND A NEW ASSY WAS INSTALLED WITH NO FURTHER INCIDENT.