{"schema_version":1,"airport":"4U9","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"a3716fd6b9fb","priority":"fyi","category":"airport","kind":"changed","summary":"airport name: Dell Flight Strip -> Hyak Airbase","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"DELL FLIGHT STRIP","new":"HYAK AIRBASE"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"e5e630859e16","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Airfield surface condition unmonitored.","source":"APT_RMK","original":"AFLD SFC COND UNMONITORED.","fields":[{"field":"REMARK","old":"AFLD SFC COND UNMONITORED 0000-2400","new":"AFLD SFC COND UNMONITORED."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"04c7d11ed743","priority":"action","category":"airport","kind":"changed","summary":"beacon: white-green (lighted land airport) (WG) -> none; beacon schedule: sunset-sunrise (SS-SR) -> none","source":"APT_BASE","fields":[{"field":"BCN_LENS_COLOR","old":"WG","new":""},{"field":"BCN_LGT_SKED","old":"SS-SR","new":""}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"4192b4e9210b","priority":"action","category":"remark","kind":"added","summary":"new remark: LANDING FEES FOR ACFT 12500 LBS AND OVER. PPR.","source":"APT_RMK","original":"LANDING FEES FOR ACFT 12500 LBS AND OVER. PPR."},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"7d5be081ee4f","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 406-925-3121; name changed: Mike Marsh -> Shauna Brewer","source":"APT_CON","fields":[{"field":"NAME","old":"MIKE MARSH","new":"SHAUNA BREWER"},{"field":"PHONE_NO","old":"406-276-3340","new":"406-925-3121"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"097d0f7f4107","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Hayak Airbase Llc -> Hyak Airbase Llc","source":"APT_CON","fields":[{"field":"NAME","old":"HAYAK AIRBASE LLC","new":"HYAK AIRBASE LLC"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"f651867d71bf","priority":"fyi","category":"remark","kind":"added","summary":"new remark: AFLD SFC COND UNMONITORED 0000-2400","source":"APT_RMK","original":"AFLD SFC COND UNMONITORED 0000-2400"},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"3b242f6850da","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: RY 14/32 MKD WITH NUMBERS ONLY. NUMBERS NSTD SIZE AND FADED.","source":"APT_RMK","original":"RY 14/32 MKD WITH NUMBERS ONLY. NUMBERS NSTD SIZE AND FADED."},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"502997ca8e3e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14/32: pavement now in excellent condition","source":"APT_RWY","fields":[{"field":"COND","old":"POOR","new":"EXCELLENT"}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"c790bff8063f","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: markings now in good condition; markings: nonstandard (other than numbers only) (NSTD) -> basic (BSC)","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"FAIR","new":"GOOD"},{"field":"RWY_MARKING_TYPE_CODE","old":"NSTD","new":"BSC"}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"50ce6f15d4c0","priority":"fyi","category":"runway","kind":"changed","summary":"runway 32: markings now in good condition; markings: nonstandard (other than numbers only) (NSTD) -> basic (BSC)","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"FAIR","new":"GOOD"},{"field":"RWY_MARKING_TYPE_CODE","old":"NSTD","new":"BSC"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"9d1f054031ad","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 406-276-3340; airport contact address: BOX 200507 -> PO BOX 164; name changed: Tim Conway -> Mike Marsh; airport contact city: HELENA -> LIMA; airport contact zip code: 59620 -> 59739","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"BOX 200507","new":"PO BOX 164"},{"field":"NAME","old":"TIM CONWAY","new":"MIKE MARSH"},{"field":"PHONE_NO","old":"406-444-2506","new":"406-276-3340"},{"field":"TITLE_CITY","old":"HELENA","new":"LIMA"},{"field":"ZIP_CODE","old":"59620","new":"59739"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"fb335b20b3ff","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: PO BOX 200507 -> PO BOX 164; name changed: Montana Aeronautics Division -> Hayak Airbase Llc","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"PO BOX 200507","new":"PO BOX 164"},{"field":"NAME","old":"MONTANA AERONAUTICS DIVISION","new":"HAYAK AIRBASE LLC"},{"field":"PHONE_NO","old":"406-444-2506","new":"406-276-3340"},{"field":"TITLE_CITY","old":"HELENA","new":"LIMA"},{"field":"ZIP_CODE","old":"59620","new":"59739"}]}],"first_cycle":"2024-10-31","last_cycle":"2026-10-01"}