{"schema_version":1,"airport":"N23","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"35acc601bb94","priority":"fyi","category":"runway","kind":"changed","summary":"runway 07: controlling obstacle changed (now 50 ft tall, 707 ft from threshold, 236 ft left of centerline, clearance slope 10:1)","source":"APT_RWY_END","fields":[{"field":"DIST_FROM_THR","old":"706","new":"707"},{"field":"OBSTN_CLNC_SLOPE","old":"9","new":"10"},{"field":"OBSTN_HGT","old":"56","new":"50"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"85749d245c43","priority":"fyi","category":"runway","kind":"changed","summary":"runway 25: controlling obstacle changed (now 56 ft tall, 676 ft from threshold, 298 ft right of centerline, clearance slope 8:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"77","new":"298"},{"field":"DIST_FROM_THR","old":"1297","new":"676"},{"field":"OBSTN_CLNC_SLOPE","old":"18","new":"8"},{"field":"OBSTN_HGT","old":"60","new":"56"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"c9963c167383","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -21C -> -20C","source":"APT_BASE","fields":[{"field":"CTA","old":"-21C","new":"-20C"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"52b9f3a2a57f","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Cold temperature airport; altitude correction required at or below -20C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -20C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -21C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -20C."}]}],"first_cycle":"2025-08-07","last_cycle":"2026-07-09"}