We have created an alternative chart for Uruguay by using a new tool. It has been entirely reviewed by our team, following strict rules of data comparison against the official documentation taken from the Aeronautical Information Publication (AIP) published by the estate authorities (DINACIA).
Furthermore, the runway position for every single aerodrome has been double-checked on Google Earth and we also contacted the person in charge of the place when an additional assessment was required.
The erros that we identified for the location coordinates in the AIP pages were informed to DINACIA after the whole document revision.
Example of official data error
In the image above we can notice a different of various kilometers between the official documented coordinates of the aerodrome and the real ones.
Another issue we found out was the absence of obstacles data provided by the authorities, which represents a danger for the planning of low-altitude flights. This has been also informed to DINACIA in order to get a solution the soonest possible.
The whole work took us about 160 hs of work.