Joejosh999
If you were to read through the entire thread you'd find that quite a few posters are professionally familiar with all the airports involved.
Lonewolf_50
The lack of due diligence on the part of Chapecoense's directors bothers many people here as well. They're not - at least not yet - suspected of taking kickbacks from LaMia. I think they may just have taken Conmebol's lead; if that was the case and a paper trail can be established to show that Conmebol actively recommended LaMia in spite of their dodgy past and illegal operating practices, I can see the lawyers rubbing their hands in glee.
As for the translation of "due diligence" the phrase more commonly used here is Gobernanza (SP)/Governança (Pt) Corporativa".