THE INJURED WAS PLACING A CRIB BLOCK BETWEEN ANOTHER CRIB BLOCK AND A SUPPLY CAR TO BLOCK THE CAR UP WHICH HAD DERAILED. AS HE WAS PLACING THE CRIB BLOCK IN POSITION THE LIFTING JACK SLIPPED O UT ALLOWING THE CAR TO COME DOWN AND CATCH HIS RIGHT INDEX FINGER BETWEEN 2 CRIB BLOCKS & HIS RIGHT THUMB GOT CAUGHT BETWEEN THE CAR & TOP CRIB BLOCK. RT INDEX FINGER AMPUTATED ABOVE 2ND JOIN