{"schema_version":1,"airport":"52J","entries":[{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"17f5ee13c642","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: controlling obstacle changed (now , clearance slope 20:1); controlling obstacle: TREES -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":""},{"field":"CNTRLN_OFFSET","old":"74","new":""},{"field":"DIST_FROM_THR","old":"294","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"3","new":"20"},{"field":"OBSTN_HGT","old":"28","new":""},{"field":"OBSTN_TYPE","old":"TREES","new":""}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"7d96c631cfd6","priority":"fyi","category":"airport","kind":"changed","summary":"services: added pilot instruction (INSTR)","source":"APT_BASE","fields":[{"field":"OTHER_SERVICES","old":"AGRI","new":"AGRI,INSTR"}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"76d2674a69dc","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: TREES 19' HIGH 105' LEFT OF CNTLN 142' FROM RWY END","source":"APT_RMK","original":"TREES 19' HIGH 105' LEFT OF CNTLN 142' FROM RWY END"},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"ace94ab7dd46","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06: controlling obstacle changed (now , clearance slope 20:1); controlling obstacle: TREES -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":""},{"field":"CNTRLN_OFFSET","old":"116","new":""},{"field":"DIST_FROM_THR","old":"368","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"5","new":"20"},{"field":"OBSTN_HGT","old":"29","new":""},{"field":"OBSTN_TYPE","old":"TREES","new":""}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"b86ff9101c3e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: controlling obstacle changed (now 28 ft tall, 294 ft from threshold, 74 ft right of centerline, clearance slope 3:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"81","new":"74"},{"field":"DIST_FROM_THR","old":"1322","new":"294"},{"field":"OBSTN_CLNC_SLOPE","old":"19","new":"3"},{"field":"OBSTN_HGT","old":"58","new":"28"}]}],"first_cycle":"2025-06-12","last_cycle":"2026-01-22"}