{"schema_version":1,"airport":"MTV","entries":[{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"c4437fbe08fe","priority":"action","category":"runway","kind":"changed","summary":"runway 13/31: length: 5002 -> 6077 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"5002","new":"6077"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"b3213278f832","priority":"action","category":"navaid","kind":"changed","summary":"runway 31: ILS runway length: 5002 -> 6077 ft","source":"ILS_BASE","fields":[{"field":"RWY_LEN","old":"5002","new":"6077"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"39b9375a4894","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: UNUSBL BYD 9 DEG RIGHT OF CNTRLN.","source":"APT_RMK","original":"UNUSBL BYD 9 DEG RIGHT OF CNTRLN."},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"f69cf56cc1c1","priority":"fyi","category":"runway","kind":"changed","summary":"runway 13: runway end elevation: 940.9 -> 948 ft MSL; touchdown zone elevation: 940.9 -> 948 ft MSL; threshold crossing height: 40 -> 54 ft AGL; visual glide path angle: 3 -> 3.5°","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"940.9","new":"948"},{"field":"TDZ_ELEV","old":"940.9","new":"948"},{"field":"THR_CROSSING_HGT","old":"40","new":"54"},{"field":"VISUAL_GLIDE_PATH_ANGLE","old":"3","new":"3.5"}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"d467df784902","priority":"fyi","category":"runway","kind":"changed","summary":"runway 13: controlling obstacle changed (now 85 ft tall, 2801 ft from threshold, 524 ft right of centerline, clearance slope 30:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"639","new":"524"},{"field":"DIST_FROM_THR","old":"3494","new":"2801"},{"field":"OBSTN_CLNC_SLOPE","old":"33","new":"30"},{"field":"OBSTN_HGT","old":"97","new":"85"}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"88de024f0efd","priority":"fyi","category":"runway","kind":"changed","summary":"runway 31: controlling obstacle changed (now 36 ft tall, 1104 ft from threshold, 296 ft right of centerline, clearance slope 25:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"297","new":"296"},{"field":"OBSTN_CLNC_SLOPE","old":"36","new":"25"},{"field":"OBSTN_HGT","old":"25","new":"36"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"131d7dd0962a","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -17C -> -16C","source":"APT_BASE","fields":[{"field":"CTA","old":"-17C","new":"-16C"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"5e32f6aa736c","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Cold temperature airport; altitude correction required at or below -16C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -16C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -17C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -16C."}]}],"first_cycle":"2025-10-02","last_cycle":"2026-05-14"}