{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"MT75","counts":{"action":2,"ifr":0,"fyi":4},"changes":[{"id":"7dbcee846373","priority":"action","category":"airport","kind":"added","summary":"airport attendance listed: UNATTENDED","source":"APT_ATT","fields":[{"field":"ATTENDANCE","old":"","new":"UNATTENDED"}]},{"id":"1eba1bca2b8a","priority":"action","category":"remark","kind":"added","summary":"new remark: A 110-001 prior permission required Defense Switching Network 324-5085","source":"APT_RMK","original":"A 110-001 PPR DSN 324-5085"},{"id":"7da5a71521ba","priority":"fyi","category":"airport","kind":"changed","summary":"airport name: Billings Limited Army Air Support Facility -> Billings Army Air Support Facility; ownership: privately owned (PR) -> Army owned (MR); wind indicator: none -> unlighted wind indicator","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"BILLINGS LIMITED ARMY AIR SUPPORT FACILITY","new":"BILLINGS ARMY AIR SUPPORT FACILITY"},{"field":"OWNERSHIP_TYPE_CODE","old":"PR","new":"MR"},{"field":"WIND_INDCR_FLAG","old":"","new":"Y"}]},{"id":"8f755a1f96e4","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number: 406-324-3109 -> 406-324-5085; airport manager: Montana Air National Guard -> Montana Army National Guard","source":"APT_CON","fields":[{"field":"NAME","old":"MONTANA AIR NATIONAL GUARD","new":"MONTANA ARMY NATIONAL GUARD"},{"field":"PHONE_NO","old":"406-324-3109","new":"406-324-5085"}]},{"id":"92ed798c95a6","priority":"fyi","category":"airport","kind":"changed","summary":"airport owner: Montana Air National Guard -> Montana Army National Guard","source":"APT_CON","fields":[{"field":"NAME","old":"MONTANA AIR NATIONAL GUARD","new":"MONTANA ARMY NATIONAL GUARD"},{"field":"PHONE_NO","old":"406-324-3109","new":"406-324-5085"}]},{"id":"2efef464adf6","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: (AASF)","source":"APT_RMK","original":"(AASF)","fields":[{"field":"REMARK","old":"(LAASF)","new":"(AASF)"}]}]}