I don't fly the 737 but my understanding is you can commit to a single runway if landing is reasonabley assured ( Wx, atc, etc. ) if you will be on the ground with final reserve (30 mins. at 1500'). prior to that you inform atc of an urgency if you find that excess delays beyond their initial delays have been encountered. If you are in the air with less than final reserve then that famous russian holiday is declared. ( MAYDAY) What is this business about min fuel on type and checklists for fuel quantity low? A different issue about management. The question should not be about bingo but rather was the operation safe and were the resouces( reluctantly ATC )informed to mitigate the situation or simply a commander unable to direct the appropriate course of action and just kept going hoping for the best. Perhaps he did land with 30 minutes of fuel but taxied extensively. I don't think ther has ever been a min fuel on stand.
DD
