}

	tile = st->airport_tile;

	const AirportFTAClass *afc = st->Airport();

	int w = afc->size_x;

	int h = afc->size_y;

	CommandCost cost(EXPENSES_CONSTRUCTION, w * h * _price.remove_airport);

	const Aircraft *a;

	FOR_ALL_AIRCRAFT(a) {

		if (a->targetairport == st->index && a->state != FLYING) return CMD_ERROR;

	}

	BEGIN_TILE_LOOP(tile_cur, w, h, tile) {

		if (!EnsureNoVehicleOnGround(tile_cur)) return CMD_ERROR;

		if (flags & DC_EXEC) {

			DeleteAnimatedTile(tile_cur);

			DoClearSquare(tile_cur);

		}

	} END_TILE_LOOP(tile_cur, w, h, tile)