Man, that weather is lower than I thought. My fuel burn is high. And I’m tired. But my airport is only 50 miles away…
Plan Continuation Bias is the human tendency to continue on a given plan in the face of changing circumstances. Failure to go around, divert, or re-route around weather are examples of Plan Continuation Bias.
The old saying is to “plan the flight and fly the plan.” 99% of the time, that works. But aviation is dynamic. We are imperfect biological entities flying complex machines in an ever-changing atmosphere. Given all of that, it’s best to continually re-evaluate your plan as you fly. With each completed leg, look ahead and ask yourself if it’s okay to continue or if it’s time to divert. If that approach looks or feels shaky, power up and try again.
Plan the flight and fly the plan…but change your plan when situations warrant.