What was found
A LARGE PIECE OF ICE HAD FORMED AROUND THE FWD WATER SERVICE PANEL. REMOVED ICE AND FOUND WATER SERVICE CAP NOT PROPERLY INSTALLED AND OVERFLOW VALVE PARTIALLY OPEN. INSPECTED FUSELAGE, NO DAMAGE. ALSO, ENGINE FOR INGESTION AND FOUND 2 C-1 BLADES WITH MINOR DENTS. BLENDED DENTS PER PRATT AND WHITNEY MM 72-00, FIG 601.