{"schema_version":1,"airport":"PTD","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"8227c0e11701","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06: controlling obstacle changed (now 35 ft tall, 749 ft from threshold, 200 ft left of centerline, clearance slope 15:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"141","new":"200"},{"field":"DIST_FROM_THR","old":"567","new":"749"},{"field":"OBSTN_CLNC_SLOPE","old":"17","new":"15"},{"field":"OBSTN_HGT","old":"21","new":"35"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"e03ee301c2b4","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: controlling obstacle changed (now 121 ft tall, 1824 ft from threshold, 286 ft right of centerline, clearance slope 13:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"283","new":"286"},{"field":"DIST_FROM_THR","old":"1802","new":"1824"},{"field":"OBSTN_CLNC_SLOPE","old":"18","new":"13"},{"field":"OBSTN_HGT","old":"87","new":"121"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"6ec67e23352b","priority":"action","category":"runway","kind":"changed","summary":"runway 06/24: length: 3703 -> 3704 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"3703","new":"3704"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"1ecce7e76633","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06: runway end elevation: 470.9 -> 471.1 ft MSL; touchdown zone elevation: 473.9 -> 474.3 ft MSL; threshold crossing height: 45 -> 42 ft AGL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"470.9","new":"471.1"},{"field":"TDZ_ELEV","old":"473.9","new":"474.3"},{"field":"THR_CROSSING_HGT","old":"45","new":"42"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"5c00805174df","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: runway end elevation: 468.1 -> 468.3 ft MSL; touchdown zone elevation: 473.9 -> 474.3 ft MSL; threshold crossing height: 45 -> 41 ft AGL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"468.1","new":"468.3"},{"field":"TDZ_ELEV","old":"473.9","new":"474.3"},{"field":"THR_CROSSING_HGT","old":"45","new":"41"}]}],"first_cycle":"2026-03-19","last_cycle":"2026-07-09"}