I have known a requested div to be refused by TAG Farnborough as the crew had not requested PPR and did not declare an emergency. The crew argued that it had been on their flight plan but as it was IFR, the flight plan had not been sent to either TAG Farnborough or ATC Farnborough whereas VFR flight plans do get sent to alternates.
Course ATC got blamed for being 'un co-operative' by Northolt ATC (intended destination), but it was not ATC's decision to make; TAG send ATC a daily list of expected arrivals and anything which asks to land and is not on that list ATC has to call TAG to approve it/not approve it and there's a clear paragraph in the AIP (which I wrote) saying that just filing a flight plan to Farnborough does not constitute a request for PPR.
Last edited by chevvron; 26th Aug 2016 at 07:31.