411A
Hindsight is always great, particularly after an accident!
A rule that says below MSA, a GPWS warning = compulsory GPWS pull up mvre would have saved MANY lives since GPWS was introduced if it had always been adhered to.
It might be "common sense" to continue in VMC, 100% SA etc., but this requires a discussion between the 2 crew members after the GPWS to ensure this has been achieved. There may not be time to have this discussion...
There would be an argument for not "pulling up" if GPWS false alerts were frequent , which I understand they were in the early days, but no longer. There are a number of false EGPWS alerts now, as we get familiar with the system, since it is less tolerant of "user error" (wrong altimeter setting, not overridden into QFE airfield / airfield not in database etc.).
At the end of a long night, if a piece of kit that your airline and regulatory authority have installed, says "pull up NOW", and it doesn't often cry foul, seems a good scheme to obey it. There are too many dead bodies from those who "thought they knew better"...
NoD