Samuel, the Javelin incident at Tengah in 1966 was believed to have occured when the Control Locks engaged, which seems a bit unlikely to me, an ex 64 Sqdn Javelin man.
I heard it was throttle locks but whatever the reason he had turned to line up with the runway and couldn't increase power and so decided to abandon the aircraft. It's actually quite surreal watching something you did on a regular basis, and then all of sudden the canopy goes followed by two seats.