{"schema_version":1,"airport":"HIE","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"fa88a8eaa739","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.4 via the Whitefield outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"a614137ce7e7","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: For clearance delivery contact Boston ARTCC at 603-879-6859.","source":"APT_RMK","original":"FOR CD CTC BOSTON ARTCC AT 603-879-6859.","fields":[{"field":"REMARK","old":"FOR CD IF UNA TO CTC ON FSS FREQ, CTC BOSTON ARTCC AT 603-879-6859.","new":"FOR CD CTC BOSTON ARTCC AT 603-879-6859."}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"9cecfc211999","priority":"fyi","category":"runway","kind":"changed","summary":"runway 28: controlling obstacle changed (now 62 ft tall, 791 ft from threshold, 257 ft left of centerline, clearance slope 9:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"272","new":"257"},{"field":"DIST_FROM_THR","old":"709","new":"791"},{"field":"OBSTN_CLNC_SLOPE","old":"8","new":"9"},{"field":"OBSTN_HGT","old":"59","new":"62"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"ee4d4bd67e7a","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -29C -> -28C","source":"APT_BASE","fields":[{"field":"CTA","old":"-29C","new":"-28C"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"77144b3ec277","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -28C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -28C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -29C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -28C."}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"d35ad280a91d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 10: instrument landing system: localizer -> none","source":"APT_RWY_END","fields":[{"field":"ILS_TYPE","old":"LOCALIZER","new":""}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"b0145d3b7395","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: There is 7 foot tall low growth 60 to 135 feet from the runway end, 147 feet to the right.","source":"APT_RMK","original":"7 FT TALL LOW GROWTH 60-135 FT FM RWY END, 147 FT R."},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"1e75054fe133","priority":"fyi","category":"runway","kind":"changed","summary":"runway 28: controlling obstacle changed (now 59 ft tall, 709 ft from threshold, 272 ft left of centerline, clearance slope 8:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"236","new":"272"},{"field":"DIST_FROM_THR","old":"726","new":"709"},{"field":"OBSTN_CLNC_SLOPE","old":"12","new":"8"},{"field":"OBSTN_HGT","old":"43","new":"59"}]}],"first_cycle":"2024-10-31","last_cycle":"2026-09-03"}