WHILE WORKING TO PULL KILN FEED SILO 2, HE HAD CONNECTED THE AIR HOSE AND DESCENDED TO TURN ON THE AIR SUPPLY. NO AIR WAS FLOWING AND NO FEED WAS COMING FROM THE SILO. HE ASCENDED THE LADDER W ITH 4' LONG STEEL BAR. PLACING THE BAR ON THE PLATFORM, LOST HIS GRIP BECAUSE THE AIR HOSE WAS ACROSS THE LADDER RUN AND FELL 12'13' ON HARD FLOOR.