Originally Posted by
Qwark
Unfortunately an Approach Ban rule wouldnt help here though. It needs real time visibility and ceiling to be reported to the crew. So basically it would only work at towered airports.
The way the approach ban has been written for the CASRs, you are correct; they ban an approach based on reported conditions.
The Flight Safety Foundation model allows an approach, but if you try once and can't get visual you are not allowed to try again. THAT model would have perhaps prevented this accident.