an ordnance storage facility was used to house the pieces as some contained unburned propellant. marks seen on the right srb matched the contact area shown previously on the e.t. inner tank stringers. the size and location of the burn-through as indicated by the recovered srb debris were illustrated on an assembled booster. the aft center section of the joint shows a large hole. the irregular hole is roughly rectangular and is about 27 by 15 inches. the steel case material showed evidence of hot gas erosion caused by combustion products flowing through the opening. the aft section of the right srb showed a hole approximately 33 by 21 inches. the burned surface extended into the aft attached strut region. the exterior surface of the aft case featured a large heat-affected area. the shape and location of this heat spot indicates an impingement from the escaping gases. there was a small burn-through in the case wall which appeared to have penetrated from the outside in. this was due to the impingement of hot gases from the anomolous plume. the hole in the solid rocket booster segmen

an ordnance storage facility was used to house the pieces as some contained unburned propellant. marks seen on the right srb matched the contact area shown previously on the e.t. inner tank stringers. the size and location of the burn-through as indicated by the recovered srb debris were illustrated on an assembled booster. the aft center section of the joint shows a large hole. the irregular hole is roughly rectangular and is about 27 by 15 inches. the steel case material showed evidence of hot gas erosion caused by combustion products flowing through the opening. the aft section of the right srb showed a hole approximately 33 by 21 inches. the burned surface extended into the aft attached strut region. the exterior surface of the aft case featured a large heat-affected area. the shape and location of this heat spot indicates an impingement from the escaping gases. there was a small burn-through in the case wall which appeared to have penetrated from the outside in. this was due to the impingement of hot gases from the anomolous plume. the hole in the solid rocket booster segmen