--- a/src/openttd.cpp	Thu Aug 16 08:23:58 2007 +0000
+++ b/src/openttd.cpp	Thu Aug 16 20:28:14 2007 +0000
@@ -1497,6 +1497,8 @@
 								case AT_METROPOLITAN:  ResetAirportToNewGRFSpec(t, st, 0x5850414F, 1); break;
 								case AT_INTERNATIONAL: ResetAirportToNewGRFSpec(t, st, 0x5850414F, 2); break;
 								case AT_HELIDEPOT:     ResetAirportToNewGRFSpec(t, st, 0x5850414F, 3); break;
+								case AT_INTERCON:      ResetAirportToNewGRFSpec(t, st, 0x5850414F, 4); break;
+								case AT_HELISTATION:   ResetAirportToNewGRFSpec(t, st, 0x5850414F, 5); break;
 							}
 						}
 						break;