{"schema_version":1,"airport":"4MB","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"02ae25a03850","priority":"fyi","category":"airport","kind":"changed","summary":"airport manager zip+4: none -> 4466","source":"APT_CON","fields":[{"field":"ZIP_PLUS_FOUR","old":"","new":"4466"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"76856ae87310","priority":"fyi","category":"airport","kind":"changed","summary":"airport owner zip+4: none -> 4466","source":"APT_CON","fields":[{"field":"ZIP_PLUS_FOUR","old":"","new":"4466"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"f7ed952f3406","priority":"fyi","category":"remark","kind":"added","summary":"new runway 02 end remark: 59-foot trees 85 feet right of centerline from threshold to 88 feet.","source":"APT_RMK","original":"59 FT TREES 85 FT R OF CNTRLN FM THR TO 88 FT."},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"fccaf6cdf0f0","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: controlling obstacle: TREES 46 ft tall, 214 ft from threshold, 53 ft left of centerline -> TREES 90 ft tall, 818 ft from threshold, 115 ft right of centerline; obstacle clearance slope: 0:1 -> 6:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"53","new":"115"},{"field":"DIST_FROM_THR","old":"214","new":"818"},{"field":"OBSTN_CLNC_SLOPE","old":"0","new":"6"},{"field":"OBSTN_HGT","old":"46","new":"90"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"4674c309a77e","priority":"action","category":"airport","kind":"changed","summary":"airport attendance hours changed: 0900-1600 -> IREG","source":"APT_ATT","fields":[{"field":"HOUR","old":"0900-1600","new":"IREG"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"2ce66196806b","priority":"action","category":"airport","kind":"changed","summary":"airport attendance hours changed: 0900-1700 -> IREG","source":"APT_ATT","fields":[{"field":"HOUR","old":"0900-1700","new":"IREG"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"ab0a07195b56","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: controlling obstacle changed (now 79 ft tall, 616 ft from threshold, 153 ft right of centerline, clearance slope 5:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"29","new":"153"},{"field":"DIST_FROM_THR","old":"283","new":"616"},{"field":"OBSTN_CLNC_SLOPE","old":"4","new":"5"},{"field":"OBSTN_HGT","old":"20","new":"79"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"d05059facd0f","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: controlling obstacle changed (now 46 ft tall, 214 ft from threshold, 53 ft left of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"121","new":"53"},{"field":"DIST_FROM_THR","old":"210","new":"214"}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"74c021f5a4fa","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 508-479-8301; name changed: Derick M. Jones -> John St. Amand","source":"APT_CON","fields":[{"field":"NAME","old":"DERICK M. JONES","new":"JOHN ST. AMAND"},{"field":"PHONE_NO","old":"603-636-7310","new":"508-479-8301"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"2b2d0e3fa116","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: controlling obstacle changed (now 20 ft tall, 283 ft from threshold, 29 ft right of centerline, clearance slope 4:1); controlling obstacle: PLINE -> TREES","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"95","new":"29"},{"field":"DIST_FROM_THR","old":"413","new":"283"},{"field":"OBSTN_HGT","old":"45","new":"20"},{"field":"OBSTN_TYPE","old":"PLINE","new":"TREES"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"4c96c4a9aa7d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: controlling obstacle changed (now 46 ft tall, 210 ft from threshold, 121 ft left of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"L"},{"field":"CNTRLN_OFFSET","old":"78","new":"121"},{"field":"DIST_FROM_THR","old":"215","new":"210"},{"field":"OBSTN_HGT","old":"53","new":"46"}]}],"first_cycle":"2024-09-05","last_cycle":"2026-10-01"}