OK, since the AS mgmt. did not delete the enterprise in the six days that have passed since I stated the results of my experiment, I chose to do it myself in order to release the resources used by the airline.
I will be visiting the forum at a much less frequent rate, but I am still somewhat available for the coding suggestions regarding the problems described above.
We are not simply deleting any enterprise. First of all we wanted to check the data and information and there was already a case opened at the user advisory board. I'm somehow disappointed that it got deleted as I would have prefered to have a look at it, which we couldn't manage until now. Anyhow thanlk you for your offer - I'm sure we will contact you.