WHILE LIFTING PUMP IMPPAR USING 5-TON BRIDGE CRANE HOIST, EE HAD LEFT HAND PLACED BETWEEN AUXILIARY HOOK ATTACHED TO IMPELLAR AND CRANE HOOK TO GUID IMPELLAR FOR INSTALLATION. CRANE HOOK SLIPP ED INSIDE EYELET OF AUXILIARY AND PINCHED TIP OFLEFT INDEX FINGER AGAINST IMPELLAR VEIN.