{"schema_version":1,"airport":"M53","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"a6c532dc0470","priority":"fyi","category":"runway","kind":"changed","summary":"runway 04: controlling obstacle changed (now 72 ft tall, 1405 ft from threshold, 90 ft right of centerline, clearance slope 16:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"496","new":"90"},{"field":"DIST_FROM_THR","old":"671","new":"1405"},{"field":"OBSTN_CLNC_SLOPE","old":"5","new":"16"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"e99641b0b770","priority":"fyi","category":"runway","kind":"changed","summary":"runway 22: controlling obstacle changed (now 29 ft tall, 742 ft from threshold, 132 ft right of centerline, clearance slope 18:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"627","new":"132"},{"field":"DIST_FROM_THR","old":"629","new":"742"},{"field":"OBSTN_CLNC_SLOPE","old":"8","new":"18"},{"field":"OBSTN_HGT","old":"49","new":"29"}]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"aec9555cf749","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Chuck Lovell -> David P. Pope","source":"APT_CON","fields":[{"field":"NAME","old":"CHUCK LOVELL","new":"DAVID P. POPE"}]}],"first_cycle":"2026-06-11","last_cycle":"2026-07-09"}