A 14,000 TEU Container Vessel equipped with a MAN 11K98ME-C engine experienced sudden automatic engine slowdowns entering the English Channel. The Control System alarmed: CYL 7 FIVA VALVE FAULT / FUEL INJECTION TIMING MISMATCH. Inspection showed that the proportional spool inside the FIVA (Fuel Injection Valve Actuator) valve was sticking intermittently. High-frequency movement ($>15\text{ Hz}$) had caused localized galling on the spool lands from fine particulate contamination ($<3\,\mu\text{m
