diff --git a/game/airfields.py b/game/airfields.py
index fba49b73..b3b918b0 100644
--- a/game/airfields.py
+++ b/game/airfields.py
@@ -179,6 +179,7 @@ class AirfieldData:
 
     @classmethod
     def for_airport(cls, theater: ConflictTheater, airport: Airport) -> AirfieldData:
+        cls._load_for_theater_if_needed(theater)
         return cls._airfields[theater.terrain.name][airport.id]
 
     @classmethod
diff --git a/resources/tools/datalint.py b/resources/tools/datalint.py
new file mode 100644
index 00000000..e69de29b