{"schema_version":1,"airport":"51NH","entries":[{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"8d69035ae56d","priority":"fyi","category":"runway","kind":"changed","summary":"runway H1: runway end elevation: none -> 863 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"","new":"863"}]}],"first_cycle":"2025-11-27","last_cycle":"2025-11-27"}