What was found
STARFLEX 193, LOW PRESSURE HOSE, LP MIL-H-50555 WAS USED TO CONNECT OIL COOLER TO FIREWALL FITTING. OIL PRESSURE WILL RUN BETWEEN 50-100 PSI IN LINE. HOSE BROKE AT FITTING AT OIL COOLER OUTLET, ALL OIL WAS PUMPED OUT OF ENGINE CAUSING ROD TO BE RAMMED THROUGH LT CASE HALF. (NORMAL TSO AS1072 HOSE IS INSTALLED IN THIS POSITION. STARFLEX 2650). (K)