{"schema_version":1,"airport":"SZT","entries":[{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"2eabe21c75e1","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ADDNL OBSTN 23 FT RR AT 740 FT ON CNTRLN, 85 FT TREES AT 2650 FT ON CNTRLN.","source":"APT_RMK","original":"ADDNL OBSTN 23 FT RR AT 740 FT ON CNTRLN, 85 FT TREES AT 2650 FT ON CNTRLN.","fields":[{"field":"REMARK","old":"RWY 20: ADNL OBSTN +23 FT R AT 680 FT ON CNTRLN,  85+ FT TREES AT 1500 FT ON CNTRLN.","new":"ADDNL OBSTN 23 FT RR AT 740 FT ON CNTRLN, 85 FT TREES AT 2650 FT ON CNTRLN."}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"6aa4e1fe5dc9","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: controlling obstacle changed (now 60 ft tall, 850 ft from threshold, 100 ft right of centerline, clearance slope 10:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"75","new":"100"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"b8ec5f814ed3","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): none -> -16C","source":"APT_BASE","fields":[{"field":"CTA","old":"","new":"-16C"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"d109b80a1f1e","priority":"fyi","category":"remark","kind":"added","summary":"new remark: Cold temperature airport; altitude correction required at or below -16C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -16C."}],"first_cycle":"2025-05-15","last_cycle":"2025-10-30"}