Well, clearly, that is one of the takeaways out of the SMS investigation afterwards, to examine the process of assigning alternates to aircraft.
We do it based on a risk assessment as well; it may not be a scientific one. But there's no reason at that time of night, given the weather conditions as they were, to expect that the Winnipeg airport would be closed. An aircraft becoming disabled on the runway is a pretty unusual circumstance.
Once the aircraft is diverted to Grand Forks, North Dakota, several issues come into play.
By fluke, the aircraft had departed with an unserviceable auxiliary power unit. Now it was sitting on the ground in Grand Forks with the inability to deliver power to the aircraft for the refueling process without some internal source of power. At that point, it means an engine, because that's all that's left.
Normally what would happen is that our crews would disembark the passengers and we'd carry on in normal fashion. However, in this instance there was a U.S. Customs and Border security guard standing at the bottom of the jetway saying “There's absolutely no way on earth that anybody is getting off that aircraft right now”. So it's a sort of a Texas standoff from that.
It's interesting to note that the manufacturer of the aircraft, the A320, in fact publishes a procedure for “engine on” refueling. It's not incorporated into our normal operating procedures; however, faced with the situation they were faced with, I think our crew did an exemplary job of operating as safely as possible in a situation that almost nobody could contemplate. You can't write regulations for every possible situation that's going to occur. In the circumstances, as they always do, our crews did an excellent job in the situation with which they were faced.
There has been some speculation—