Originally Posted by
737er
The autopilot had to be disconnected on Apollo 11 to prevent a crash.
To be fair, that was triggered because Buzz Aldrin (reasonably, though contrary to procedure) left the rendezvous radar on standby during the descent in the event of an emergency abort. What he didn't know was that leaving it on would steal cycles from the guidance computer in the early stages of descent. This resulted in the LEM ending up somewhat downrange of its original intended landing point.
That point aside, I completely agree.