{"schema_version":1,"airport":"S27","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"bc8ff60c185b","priority":"action","category":"remark","kind":"removed","summary":"remark removed: COMMUNICATIONS PRVDD BY GREAT FALLS RADIO ON FREQ 122.5 (LAKESIDE RCO).","source":"ATC_RMK","original":"COMMUNICATIONS PRVDD BY GREAT FALLS RADIO ON FREQ 122.5 (LAKESIDE RCO)."},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"63cabfc49466","priority":"fyi","category":"tower","kind":"removed","summary":"ATC facility entry removed, non-towered (it named no tower or approach control)","source":"ATC_BASE","fields":[{"field":"FACILITY_TYPE","old":"NON-ATCT","new":""},{"field":"FACILITY_ID","old":"S27","new":""},{"field":"FACILITY_NAME","old":"KALISPELL CITY","new":""},{"field":"REGION_CODE","old":"ANM","new":""}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"483b15d612da","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.5 via the Lakeside outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"a7aec7ca1a5b","priority":"fyi","category":"remark","kind":"added","summary":"new remark: FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.","source":"APT_RMK","original":"FOR CD CTC SALT LAKE ARTCC AT 801-320-2568."},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"768f4a36b0ba","priority":"fyi","category":"other","kind":"removed","summary":"parachute jump area PMT004 (FCA 230° 6 NM): removed","source":"PJA_BASE","fields":[{"field":"PJA_ID","old":"PMT004","new":""},{"field":"NAV_ID","old":"FCA","new":""},{"field":"NAV_TYPE","old":"VOR/DME","new":""},{"field":"RADIAL","old":"230","new":""},{"field":"DISTANCE","old":"6","new":""},{"field":"NAVAID_NAME","old":"KALISPELL","new":""}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"9f94e86756ff","priority":"action","category":"remark","kind":"changed","summary":"remark updated: 400 FT UNLGTD TWR 3 MI E.","source":"APT_RMK","original":"400 FT UNLGTD TWR 3 MI E.","fields":[{"field":"REMARK","old":"TWR 400 FT AGL 3 MILES E UNLGTD.","new":"400 FT UNLGTD TWR 3 MI E."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"a0964008854d","priority":"action","category":"runway","kind":"changed","summary":"runway 13: displaced threshold: none -> 450 ft","source":"APT_RWY_END","fields":[{"field":"DISPLACED_THR_LEN","old":"","new":"450"}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"dc62b11017f9","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: EMAIL: JOHNPAUL@REDEAGLEAVIATION.COM","source":"APT_RMK","original":"EMAIL: JOHNPAUL@REDEAGLEAVIATION.COM"},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"447178d34d4e","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: RWY 13 DTHR NOT LGTD.","source":"APT_RMK","original":"RWY 13 DTHR NOT LGTD."},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"11ccb818a352","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: ULTRALIGHTS ON & INVOF ARPT.","source":"APT_RMK","original":"ULTRALIGHTS ON & INVOF ARPT."},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"250ad248744c","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: LGTD THR RELOCATED FOR NIGHT OPS; 3445 FT OF RWY 13/31 LGTD AT NIGHT.","source":"APT_RMK","original":"LGTD THR RELOCATED FOR NIGHT OPS; 3445 FT OF RWY 13/31 LGTD AT NIGHT.","fields":[{"field":"REMARK","old":"LGTD THR RELOCATED 155 FT FOR NIGHT OPNS; 3445 FT OF RY 13/31 LGTD AT NIGHT.","new":"LGTD THR RELOCATED FOR NIGHT OPS; 3445 FT OF RWY 13/31 LGTD AT NIGHT."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"e4b3d3041937","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: TWO 80 FT POLES 1400 FT FM RWY END 150 FT R & 520 FT R OF CNTRLN; TWO 80 FT POLES 1650 FT FM RWY END 15 FT R & 385 FT R OF CNTRLN; 15:1 APCH SLOPE.","source":"APT_RMK","original":"TWO 80 FT POLES 1400 FT FM RWY END 150 FT R & 520 FT R OF CNTRLN; TWO 80 FT POLES 1650 FT FM RWY END 15 FT R & 385 FT R OF CNTRLN; 15:1 APCH SLOPE.","fields":[{"field":"REMARK","old":"TWO 80 FT POLES 1400 FT FM END OF RWY 150 FT R & 520 FT R OF CNTRLN AND TWO 80 FT POLES 1650 FT FM END OF RWY 15 FT R & 385 FT R OF CNTRLN 15:1 APCH SLOPE","new":"TWO 80 FT POLES 1400 FT FM RWY END 150 FT R & 520 FT R OF CNTRLN; TWO 80 FT POLES 1650 FT FM RWY END 15 FT R & 385 FT R OF CNTRLN; 15:1 APCH SLOPE."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"c6590b135278","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ULTRALIGHTS, PAJA & BLN ACT ON & INVOF ARPT.","source":"APT_RMK","original":"ULTRALIGHTS, PAJA & BLN ACT ON & INVOF ARPT.","fields":[{"field":"REMARK","old":"BLN ACT & PAJA ON & INVOF ARPT.","new":"ULTRALIGHTS, PAJA & BLN ACT ON & INVOF ARPT."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"a3c8e4ab0917","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: UNLGTD.","source":"APT_RMK","original":"UNLGTD.","fields":[{"field":"REMARK","old":"DTHR 450 FT UNLGTD.","new":"UNLGTD."}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"15098292937f","priority":"fyi","category":"remark","kind":"added","summary":"new remark: EMAIL: JOHNPAUL@REDEAGLEAVIATION.COM","source":"APT_RMK","original":"EMAIL: JOHNPAUL@REDEAGLEAVIATION.COM"},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"2e00001b337c","priority":"action","category":"remark","kind":"changed","summary":"remark updated: TWO 80 FT POLES 1400 FT FM END OF RWY 150 FT R & 520 FT R OF CNTRLN AND TWO 80 FT POLES 1650 FT FM END OF RWY 15 FT R & 385 FT R OF CNTRLN 15:1 APCH SLOPE","source":"APT_RMK","original":"TWO 80 FT POLES 1400 FT FM END OF RWY 150 FT R & 520 FT R OF CNTRLN AND TWO 80 FT POLES 1650 FT FM END OF RWY 15 FT R & 385 FT R OF CNTRLN 15:1 APCH SLOPE","fields":[{"field":"REMARK","old":"ONE 324 FT RDO TWR 5750 FT FM END OF RWY 1300 FT R OF CNTRLN. RWY 13 - TWO 80 FT POLES 1400 FT FM END OF RWY 150 FT R & 520 FT R OF CNTRLN & TWO 80 FT POLES 1650 FT FM END OF RWY 15 FT R & 385 FT R OF CNTRLN 15:1 APCH SLP.","new":"TWO 80 FT POLES 1400 FT FM END OF RWY 150 FT R & 520 FT R OF CNTRLN AND TWO 80 FT POLES 1650 FT FM END OF RWY 15 FT R & 385 FT R OF CNTRLN 15:1 APCH SLOPE"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"47d6ed7ee42f","priority":"action","category":"airport","kind":"changed","summary":"attended days: MON-FRI -> MON-SAT","source":"APT_ATT","fields":[{"field":"DAY","old":"MON-FRI","new":"MON-SAT"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"0d4c2445d331","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Todd Clark -> John Paul Noyes","source":"APT_CON","fields":[{"field":"NAME","old":"TODD CLARK","new":"JOHN PAUL NOYES"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"c10214cd97ca","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Activate low intensity runway lights runway 13/31 on common traffic advisory frequency.","source":"APT_RMK","original":"ACTVT LIRL RWY 13/31 - CTAF","fields":[{"field":"REMARK","old":"ACTVT LIRL RY 13/31 - CTAF","new":"ACTVT LIRL RWY 13/31 - CTAF"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"7e60ad13a7ea","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Contact 406-531-1594.","source":"APT_RMK","original":"406-531-1594","fields":[{"field":"REMARK","old":"OR 406-531-1594","new":"406-531-1594"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"add877a862af","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Displaced threshold is 450 feet and unlighted.","source":"APT_RMK","original":"DTHR 450 FT UNLGTD.","fields":[{"field":"REMARK","old":"RWY 13 DTHR 450 FT UNLGTD.","new":"DTHR 450 FT UNLGTD."}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"72c9992fb7ce","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: RWY 13 DTHR NOT LGTD.","source":"APT_RMK","original":"RWY 13 DTHR NOT LGTD.","fields":[{"field":"REMARK","old":"NSTD LIRL. RWY 13 DTHR NOT LGTD.","new":"RWY 13 DTHR NOT LGTD."}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"c4aa57dcc4c5","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: ACTVT LIRL RY 13/31 - CTAF -> ACTVT LIRL RWY 13/31 - CTAF","source":"FRQ","fields":[{"field":"REMARK","old":"ACTVT LIRL RY 13/31 - CTAF","new":"ACTVT LIRL RWY 13/31 - CTAF"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"3d8a2940aeb3","priority":"fyi","category":"runway","kind":"changed","summary":"runway 13: markings now in fair condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"GOOD","new":"FAIR"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"df86b858ad65","priority":"fyi","category":"runway","kind":"changed","summary":"runway 31: markings now in fair condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"GOOD","new":"FAIR"}]}],"first_cycle":"2024-11-28","last_cycle":"2026-09-03"}