I am not an expert, not even a pilot, but I am reasonably intelligent and can read the papers...
since a bolt of lightning zapped the radar at EZE a few weeks ago there has been constant controversy in the press about the the state of air traffic control here. the minister of defence and the airforce say everything is absoutely fine. Enrique Piñeyro ( ex LAPA 737 pilot, now film maker...)
and the pilots unions say things are going to hell in a handcart. There have been numerous and - to me - credible reports of two mid-air collisions having recently been avoided only by the grace of God and TCAS. As far as I know, there is no radar at all at EZE and Aeroparque and it´s all manual for the forseeable future, vague talk of renting radars from Spain etc but nothing more that that
again; I emphasise that I am know I am not a pilot and therefore the Minister and the air force may be perfectly corect and everything in the garden may be rosy. Somehow, I doubt it...