> When First Officer Zille finally took notice of their initial mistake, he and the captain decided, after checking their navigation charts, to make contact with Santarém airport (they believed it to be the closest airport in the vicinity), and made an almost 180-degree turn, now establishing a 350 magnetic course. After some calculations, Garcez realized that the aircraft did not have the necessary fuel to reach Santarém, and he started heading south again (along the now properly identified Xingu river). Finally, he decided to contact Marabá airport again, to find his location. The radio f…