RNav Arrivals
Can anyone clarify the regulations regarding RNav arrivals when the RNav STAR's are not pre programmed in the box. Eg If I was cleared to fly the RNAV 1 arrival into airfield X and discovered that the arrival was not pre programed into my FMS 1 Could I manualy construct the RNav arrival and accept the clearance or is that illegal, Or would I have to declare to ATC that I cannot accept this RNAV arrival and request an alternative. I.m asking this question relating to existing RNav procedures not the new PRnav stuff. also are the deffinative rules relating to RNav found in Pans ops if not where could I find them?