Hi there,
unfortunately you deleted some formerly correct ways in this changeset. Please be aware that Osm is a database in the first place, it's more important that the database is coherent than that the map looks fabulous. The runway and taxiways should be mapped as ways not as areas. For more information please check the Wiki and take a look at the examples: https://wiki.openstreetmap.org/wiki/Aeroways

Kind regards
Christian