{"schema_version":1,"airport":"BTT","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"ce8993f3dfe2","priority":"action","category":"airspace","kind":"changed","summary":"airspace is now:  (was: class e svc continuous)","source":"CLS_ARSP","fields":[{"field":"AIRSPACE_HRS","old":"CLASS E SVC CONTINUOUS","new":""}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"73f8ae127c89","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: instrument landing system: localizer/distance measuring equipment (LOC/DME) -> none","source":"APT_RWY_END","fields":[{"field":"ILS_TYPE","old":"LOC/DME","new":""}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"51ec21c8bc81","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -45C -> -44C","source":"APT_BASE","fields":[{"field":"CTA","old":"-45C","new":"-44C"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"e791e44d8525","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -44C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -44C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -45C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -44C."}]}],"first_cycle":"2024-09-05","last_cycle":"2026-07-09"}