{"schema_version":1,"airport":"Y51","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"5097f28403af","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: 6 FT SIGN 50 FT FM THLD; 160 FT L.","source":"APT_RMK","original":"6 FT SIGN 50 FT FM THLD; 160 FT L."},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"eaf32d490833","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: ADDNL PHONE 608-637-2346.","source":"APT_RMK","original":"ADDNL PHONE 608-637-2346."},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"d34e93ab66fb","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29; MIRL RWY 11/29 - CTAF.","source":"APT_RMK","original":"MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29; MIRL RWY 11/29 - CTAF.","fields":[{"field":"REMARK","old":"MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29 - CTAF.","new":"MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29; MIRL RWY 11/29 - CTAF."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"f7b64552d03f","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: PAPI is unusable beyond 5 degrees left of centerline.","source":"APT_RMK","original":"PAPI UNUSBL BYD 5 DEG L OF CNTRLN.","fields":[{"field":"REMARK","old":"RY 29 PAPI UNUSBL BYD 5 DEG L OF CNTRLN.","new":"PAPI UNUSBL BYD 5 DEG L OF CNTRLN."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"35a406192ab4","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29 - CTAF. -> MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29; MIRL RWY 11/29 - CTAF.","source":"FRQ","fields":[{"field":"REMARK","old":"MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29 - CTAF.","new":"MIRL RWY 11/29 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT REIL 11 & 29; PAPI RWY 11 & 29; MIRL RWY 11/29 - CTAF."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"433854b3e280","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: touchdown zone elevation: 1284 -> 1284.2 ft MSL","source":"APT_RWY_END","fields":[{"field":"TDZ_ELEV","old":"1284","new":"1284.2"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"972697d924cf","priority":"fyi","category":"runway","kind":"changed","summary":"runway 11: runway end elevation: 1263 -> 1263.1 ft MSL; touchdown zone elevation: 1284.3 -> 1285.1 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1263","new":"1263.1"},{"field":"TDZ_ELEV","old":"1284.3","new":"1285.1"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"9809162287a9","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: runway end elevation: 1258.3 -> 1258.4 ft MSL; touchdown zone elevation: 1284 -> 1284.2 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1258.3","new":"1258.4"},{"field":"TDZ_ELEV","old":"1284","new":"1284.2"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"28b9c0bb2ac6","priority":"fyi","category":"runway","kind":"changed","summary":"runway 29: runway end elevation: 1291.5 -> 1291.8 ft MSL; touchdown zone elevation: 1291.7 -> 1292 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1291.5","new":"1291.8"},{"field":"TDZ_ELEV","old":"1291.7","new":"1292"}]}],"first_cycle":"2024-10-31","last_cycle":"2026-07-09"}