Quoting extensively from the Thiokol engineers’ sworn testimony, the report documented the attempts of Al McDonald, Roger Boisjoly, Bob Ebeling, and Arnie Thompson to have the launch stopped, and the pressure Mulloy had applied to have their no-go recommendation reversed. The commissioners concluded that, had Mulloy passed on the seriousness of the engineers’ concerns about the seals and the effect of the cold weather to those at the top of the decision chain, the launch would have been postponed and the accident would never have happened.
