Both sets of main engine coolers (forward and aft) operated without cleaning for 26+ months. First Engineer reported all four low-temperature coolers in good condition. No biological fouling. No mineral fouling. Zero unplanned maintenance.
Both sets of main engine coolers (forward and aft) operated without cleaning for 26+ months. First Engineer reported all four low-temperature coolers in good condition. No biological fouling. No mineral fouling. Zero unplanned maintenance.