{"schema_version":1,"airport":"S01","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"5a8f0274d136","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06: controlling obstacle: PLINE 54 ft tall, 1667 ft from threshold, 0 ft either side of centerline -> none listed; obstacle clearance slope: 27:1 -> 20:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"B","new":""},{"field":"CNTRLN_OFFSET","old":"0","new":""},{"field":"DIST_FROM_THR","old":"1667","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"27","new":"20"},{"field":"OBSTN_HGT","old":"54","new":""},{"field":"OBSTN_TYPE","old":"PLINE","new":""}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"688d1887d79e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 15/33: pavement condition: poor -> good","source":"APT_RWY","fields":[{"field":"COND","old":"POOR","new":"GOOD"}]},{"cycle":"2026-04-16","from_cycle":"2026-03-19","id":"59a739a5f344","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06: runway end elevation: 3547.9 -> 3548.4 ft MSL; touchdown zone elevation: 3547.9 -> 3548.4 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"3547.9","new":"3548.4"},{"field":"TDZ_ELEV","old":"3547.9","new":"3548.4"}]},{"cycle":"2026-04-16","from_cycle":"2026-03-19","id":"d10847cadeb6","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: runway end elevation: 3528.1 -> 3528.6 ft MSL; touchdown zone elevation: 3537.6 -> 3538.2 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"3528.1","new":"3528.6"},{"field":"TDZ_ELEV","old":"3537.6","new":"3538.2"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"8c784f29da55","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: 107 SO. MAIN STREET -> 111 GARLAND STREET; airport contact city: CONRAD -> KALISPELL; airport contact zip code: 59425 -> 59901","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"107 SO. MAIN STREET","new":"111 GARLAND STREET"},{"field":"TITLE_CITY","old":"CONRAD","new":"KALISPELL"},{"field":"ZIP_CODE","old":"59425","new":"59901"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"d35044b03cba","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: FADED FLAKING PAINT.","source":"APT_RMK","original":"FADED FLAKING PAINT."},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"bea39d9cc60f","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: UNEVEN, CRACKS & RPRS.","source":"APT_RMK","original":"UNEVEN, CRACKS & RPRS."},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"5fcb928d48d3","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ACTVT REIL RWY 24; PAPI RWY 06/24; MIRL RWY 06/24 - CTAF.","source":"APT_RMK","original":"ACTVT REIL RWY 24; PAPI RWY 06/24; MIRL RWY 06/24 - CTAF.","fields":[{"field":"REMARK","old":"ACTVT REIL RWY 24; PAPI RWY 24; MIRL RWY 06/24 - CTAF.","new":"ACTVT REIL RWY 24; PAPI RWY 06/24; MIRL RWY 06/24 - CTAF."}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"d3c4fdb74d0b","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: ACTVT REIL RWY 24; PAPI RWY 24; MIRL RWY 06/24 - CTAF. -> ACTVT REIL RWY 24; PAPI RWY 06/24; MIRL RWY 06/24 - CTAF.","source":"FRQ","fields":[{"field":"REMARK","old":"ACTVT REIL RWY 24; PAPI RWY 24; MIRL RWY 06/24 - CTAF.","new":"ACTVT REIL RWY 24; PAPI RWY 06/24; MIRL RWY 06/24 - CTAF."}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"d2cb36835b84","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06/24: pavement now in excellent condition","source":"APT_RWY","fields":[{"field":"COND","old":"POOR","new":"EXCELLENT"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"341ffe2b9231","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06: markings now in good condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"POOR","new":"GOOD"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"25527155eebb","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: markings now in good condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"POOR","new":"GOOD"}]},{"cycle":"2025-01-23","from_cycle":"2024-12-26","id":"891f6abeb653","priority":"fyi","category":"airport","kind":"changed","summary":"airframe repair: none -> none; bottled oxygen: none -> none; bulk oxygen: none -> none; engine repair: none -> none","source":"APT_BASE","fields":[{"field":"AIRFRAME_REPAIR_SER_CODE","old":"NONE","new":""},{"field":"BOTTLED_OXY_TYPE","old":"NONE","new":""},{"field":"BULK_OXY_TYPE","old":"NONE","new":""},{"field":"PWR_PLANT_REPAIR_SER","old":"NONE","new":""}]},{"cycle":"2025-01-23","from_cycle":"2024-12-26","id":"8d028c80af8d","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: FADED FLAKING PAINT.","source":"APT_RMK","original":"FADED FLAKING PAINT.","fields":[{"field":"REMARK","old":"FADED AND FLAKING PAINT.","new":"FADED FLAKING PAINT."}]},{"cycle":"2025-01-23","from_cycle":"2024-12-26","id":"5355a748bdc2","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: UNEVEN, CRACKS & RPRS.","source":"APT_RMK","original":"UNEVEN, CRACKS & RPRS.","fields":[{"field":"REMARK","old":"UNEVEN SFC, CRACKS AND RPRS. RESURFACING SKED 2024.","new":"UNEVEN, CRACKS & RPRS."}]}],"first_cycle":"2025-01-23","last_cycle":"2026-10-01"}