What happened
About two hours after reaching full load, the crew reported a sudden noise from one unit. The first inspection was inconclusive. Soon after, power output dropped on Unit 7 and the unit was cut out so the ship could reach port.
The scavenge inspection in port found a broken piston ring #1 on Unit 7 with significant wear, and scuffing marks on the liner.
Root cause
A leaking fuel injector on Unit 7, missed during routine scavenge space checks. Excess fuel created overpressure in the cylinder, breaking the top ring and damaging the liner.
Where CCM changes the outcome
Traditional checks happen only in port and short calls mean steps get skipped. Continuous, structured monitoring with CCM would have surfaced the fuel leakage and wear progression early, at under 1% of the incident’s annual cost impact.
