PE00 020; WAS TRAVELING ABOUT 60MPH ON HIGHWAY AND HEARD TIRE BLOWOUT. HE WAS ABLE TO CONTROL VEHICLE, AND STEERED IT ONTO SHOULDERS. HE NOTICED THAT REAR TIRE AND PASSENGER TIRE BLEWOUT. ALSO, THIRD TIRE BLEWOUT ON 29 OF MARCH. TIRES WERE FIRESTONE, P21570R14 NTS #DOT W2HYFRN161. HE HAS CONTACTED FIRESTONE.*AK