True, but they actually had tried to set 027--something strange about the nav unit, like it had four digits instead of three, can't remember exactly.
One interesting thing about that crash was that the story was that they were listening to the World Cup finals on the ADF--Brazil was playing--and got so distracted they never knew where they were.
The truth, however, turned out to be that when they did realize they were lost, the crew tried to tune in broadcast stations to get a fix, though they never could find one strong enough to use. And of course every broadcast station in Brazil was playing the finals, so when a flight attendant at some point went into the cockpit, the passengers in the front rows heard the football game and spread the story to the press.