/* Aircraft too old? Sell it. */
		if (AIVehicle.GetAgeLeft(i) < 365) {
		    /* Send the vehicle to depot if we didn't do so yet */
			if (!vehicle_to_depot.rawin(i) || vehicle_to_depot.rawget(i) != true) {
				AILog.Info("Sending " + AIVehicle.GetName(i) + " to hangar to be sold, due to its old age.");
				AIVehicle.SendVehicleToDepot(i);
				vehicle_to_depot.rawset(i, true);
			}
		}

		/* Sell it once it really is in the depot */
		if (vehicle_to_depot.rawin(i) && vehicle_to_depot.rawget(i) == true && AIVehicle.IsStoppedInDepot(i)) {
		    AILog.Info("Selling " + AIVehicle.GetName(i) + " as it finally is in a hangar. (From " + AIStation.GetName(AIStation.GetStationID(AIOrder.GetOrderDestination(i, 0))) + " to " + AIStation.GetName(AIStation.GetStationID(AIOrder.GetOrderDestination(i, 1))) + ")");
			local list2 = AIVehicleList_Station(AIStation.GetStationID(AIOrder.GetOrderDestination(i, 0)));
			list2.Valuate(AIVehicle.GetVehicleType);
		    list2.KeepValue(AIVehicle.VT_AIR);
			/* Last vehicle on this route? Consider increasing the minimum distance for the next routes. */
			if (list2.Count() == 1) {
			    if (AIVehicle.GetProfitLastYear(i) < 10000 && AIVehicle.GetProfitThisYear(i) < 10000) {
				    AILog.Warning("Last vehicle on this route!");
			        local dist = this.distance_of_route.rawget(i);
				    if (min_air_distance < max_air_distance - dist) {
    			        min_air_distance = dist;
	    			}
				}
			}
			if (AIVehicle.SellVehicle(i)) {
				vehicle_to_depot.rawdelete(i);
			}
		}
	}