{"schema_version":1,"airport":"ONA","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"ea5bb2b505ea","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.2 via the Winona outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"0774720a0e5d","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: For clearance contact MINNEAPOLIS ARTCC at 651-463-5588.","source":"APT_RMK","original":"FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","fields":[{"field":"REMARK","old":"FOR CD IF UNA TO CTC ON FSS FREQ, CTC MINNEAPOLIS ARTCC AT 651-463-5588.","new":"FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588."}]},{"cycle":"2026-04-16","from_cycle":"2026-03-19","id":"b6ac7fd40c1d","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 507-457-8269","source":"APT_CON","fields":[{"field":"PHONE_NO","old":"507-457-8274","new":"507-457-8269"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"d89cd995dee9","priority":"fyi","category":"runway","kind":"changed","summary":"runway 30: controlling obstacle changed (now , clearance slope 50:1); controlling obstacle: TREES -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":""},{"field":"CNTRLN_OFFSET","old":"635","new":""},{"field":"DIST_FROM_THR","old":"2449","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"29","new":"50"},{"field":"OBSTN_HGT","old":"75","new":""},{"field":"OBSTN_TYPE","old":"TREES","new":""}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"21c9f22f951a","priority":"fyi","category":"airport","kind":"changed","summary":"segmented circle: yes -> no","source":"APT_BASE","fields":[{"field":"SEG_CIRCLE_MKR_FLAG","old":"Y","new":"N"}]},{"cycle":"2024-10-03","from_cycle":"2024-09-05","id":"c21b63657cc1","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Winona Muni-Max Conrad Fld -> Winona Muni/Max Conrad Fld","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"WINONA MUNI-MAX CONRAD FLD","new":"WINONA MUNI/MAX CONRAD FLD"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"6311f54c9dbb","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): none -> -29C","source":"APT_BASE","fields":[{"field":"CTA","old":"","new":"-29C"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"00e707e5b16b","priority":"fyi","category":"remark","kind":"added","summary":"new remark: COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -29C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -29C."}],"first_cycle":"2024-09-05","last_cycle":"2026-09-03"}