Originally Posted by Heli-Jet
"The DRC CAA has a GNSS approach and so does the SACAA into Bukavu both differ with steep approach (glide angles)...
I'm a bit perplexed by that observation. My understanding of how navigation information is published, according to ICAO practice, is that it works like this:
1) The regulatory agency for the country in which the approach exists approves the approach, which is actually written in ARINC 424 compliant text, not pictorial form, then publishes that information.
2) Commercial organizations that publish navigation information, such as Jeppesen, then depict that information as they wish to (pictorially, by text, or in electronic database format) and promulgate it to their customers. Airlines that are sufficiently large may also create their own documents from the original information published by the state in which the approach is located.
No organization other than the regulatory authority of the state in which the approach is published, or an air carrier acting with the approval of their regulatory agency, may modify the content of the published information in any way. In other words, all that organizations such as Jeppesen do is add value by publishing the information in an easy to read or easy to access format.
I could accept that the CAA of the DRC has published an approach for Bukavu - it's in their country - but I cannot comprehend how the South African CAA could publish an approach for Bukavu unless it was an exact rendition of the data promulgated by the DRC CAA.
As for the approach not being in your electronic database - that is not, by itself, proof that Jeppesen has not published it. Some electronic databases are abridged to keep the file size to a minimum, for example, by excluding airports with runways below a certain length. Very modern aircraft with fully integrated avionics will not even present an approach to the pilot if the aircraft does not have the equipment required to fly the approach (in other words, what's the point of an aircraft displaying a DME-DME approach if it only has one DME in it?) The best way to check to see if Jeppesen has published it would be to check in a printed Jeppesen manual that you know has complete coverage of the DRC.