"Tests in the early days of the shuttle program indicated that such a condition could result in "serious, uncontained damage" to the propulsion system, Hale said."
In other words, the turbopumps, which burn hydrogen and oxygen in a gas turbine to spin fast enough to feed LH2 and LOX to the main engines, might go *BLAM*.
"Problems with the fuel-tank sensor system have bedeviled NASA for months: They first popped up while testing a different fuel tank back in April, but engineers could not reproduce the glitch or track down its source. Instead, they replaced components of the system with approved spares."
Right, the "approved spare" was the complete sensor control box from Endeavour. The only one of those boxes to not have the transistors on the simulation circuit card replaced. Why go to the effort to remove the box from another shuttle when they had other spares on a shelf? Or could it be that the entire "inventory" amounts to exactly three, all installed on the shuttles? The NASA guys in the briefing never said how many of the boxes they have.
August 1st, 2nd, 3rd, 2014
"I am a machine. I am a weapon of war. I am a destroyer of life in the service of life, the sword and shield of my human creators." Bolo Invincibilus
, Mark XXIII, Model B (Experimental) 0075-NKE "Nike".