diff -r 4a31f2e9a591 -r 6483de08de63 src/openttd.cpp
--- a/src/openttd.cpp	Fri Aug 10 18:51:28 2007 +0000
+++ b/src/openttd.cpp	Fri Aug 10 23:40:47 2007 +0000
@@ -1338,9 +1338,6 @@
 
 	UpdateAllWaypointSigns();
 
-	/* in version 2.2 of the savegame, we have new airports */
-	if (CheckSavegameVersionOldStyle(2, 2)) UpdateOldAircraft();
-
 	UpdateAllStationVirtCoord();
 
 	/* Setup town coords */
@@ -1522,6 +1519,9 @@
 		}
 	}
 
+	/* after savegame version 74, we have newgrf airports. make aircraft safe (either to hangar or bounce into air) */
+	if (CheckSavegameVersion(74)) UpdateOldAircraft();
+
 	/* In version 6.1 we put the town index in the map-array. To do this, we need
 	 *  to use m2 (16bit big), so we need to clean m2, and that is where this is
 	 *  all about ;) */