That's another discussion because it didn't have anything to do with the rocket and was an issue with the command module during a simulation, if you are referri

That's another discussion because it didn't have anything to do with the rocket and was an issue with the command module during a simulation, if you are referring to the Apollo 1 accident, which unfortunately killed all three astronauts in the cabin. And it certainly wasn't designated a success. They also completely altered designs as a result of that event.