Hmmm, there's something else here too. As a result of another crash where SAR didn't get called until some time after the crash, D&D South looked at this some time ago and got NATS buy-in to change the procedure such that the "receiving" airfield should contact the relevant D&D if an ac became overdue, thus enabling the Cell to start tracing action. I believe that all the NATS units had ammendments made to their MATS Part 2s, but can't remember why it didn;t get carried elsewhere. In the case of the crash mentioned above, once D&D had been told it only took about 20 mins to find the crash site - unfortunately by that stage all of the pax were dead.