{"schema_version":1,"airport":"4N4","entries":[{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"c81a3a633bae","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ADDL CTC SCOTT WETTSTEIN - CHAIR ARPT AUTH 701-640-1568.","source":"APT_RMK","original":"ADDL CTC SCOTT WETTSTEIN - CHAIR ARPT AUTH 701-640-1568.","fields":[{"field":"REMARK","old":"ADDL CONTACT SCOTT WETTSTEIN - CHAIR ARPT AUTH 701-640-1568.","new":"ADDL CTC SCOTT WETTSTEIN - CHAIR ARPT AUTH 701-640-1568."}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"bbc1a2925c4c","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ARPT CLSD IN WINTER MONTHS DUE TO NO SNOW REMOVAL.","source":"APT_RMK","original":"ARPT CLSD IN WINTER MONTHS DUE TO NO SNOW REMOVAL.","fields":[{"field":"REMARK","old":"AIRPORT CLOSED IN WINTER MONTHS DUE TO NO SNOW REMOVAL.","new":"ARPT CLSD IN WINTER MONTHS DUE TO NO SNOW REMOVAL."}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"e56f29d6e969","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: NMRS BIRDS & DEER ON & INVOF ARPT.","source":"APT_RMK","original":"NMRS BIRDS & DEER ON & INVOF ARPT.","fields":[{"field":"REMARK","old":"BIRDS & DEER ON & INVOF ARPT.","new":"NMRS BIRDS & DEER ON & INVOF ARPT."}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"16f2f81016ab","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle changed (now , clearance slope 20:1); controlling obstacle: BRUSH -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"B","new":""},{"field":"CNTRLN_OFFSET","old":"0","new":""},{"field":"DIST_FROM_THR","old":"0","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"0","new":"20"},{"field":"OBSTN_HGT","old":"6","new":""},{"field":"OBSTN_TYPE","old":"BRUSH","new":""}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"9c4255880374","priority":"fyi","category":"remark","kind":"added","summary":"new remark: 6FT BRUSH ADJ TO RWY SIDES.","source":"APT_RMK","original":"6FT BRUSH ADJ TO RWY SIDES."},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"3c5def8ff233","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: RWY WIDTH 60 FT IN AREAS WITH STEEP DROP-OFFS INTO WATER. RWY SFC ROUGH.","source":"APT_RMK","original":"RWY WIDTH 60 FT IN AREAS WITH STEEP DROP-OFFS INTO WATER. RWY SFC ROUGH.","fields":[{"field":"REMARK","old":"RWY WID 60 FT IN AREAS WITH STEEP DROP-OFFS INTO WATER.","new":"RWY WIDTH 60 FT IN AREAS WITH STEEP DROP-OFFS INTO WATER. RWY SFC ROUGH."}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"c423c24a7086","priority":"fyi","category":"runway","kind":"changed","summary":"runway 18/36: pavement now in poor condition","source":"APT_RWY","fields":[{"field":"COND","old":"FAIR","new":"POOR"}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"1dbfc5a17488","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle changed (now 6 ft tall, 0 ft from threshold, 0 ft either side of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"5","new":"6"}]}],"first_cycle":"2025-11-27","last_cycle":"2025-12-25"}