{"schema_version":1,"airport":"EEN","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"ad3143628189","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: controlling obstacle: TREE 70 ft tall, 974 ft from threshold, 540 ft left of centerline -> TREE 140 ft tall, 2387 ft from threshold, 639 ft right of centerline; obstacle clearance slope: 11:1 -> 15:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"540","new":"639"},{"field":"DIST_FROM_THR","old":"974","new":"2387"},{"field":"OBSTN_CLNC_SLOPE","old":"11","new":"15"},{"field":"OBSTN_HGT","old":"70","new":"140"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"63a6af1eda1e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: controlling obstacle: TREES 10 ft tall, 355 ft from threshold, 37 ft right of centerline -> TREES 18 ft tall, 330 ft from threshold, 126 ft right of centerline; obstacle clearance slope: 15:1 -> 7:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"37","new":"126"},{"field":"DIST_FROM_THR","old":"355","new":"330"},{"field":"OBSTN_CLNC_SLOPE","old":"15","new":"7"},{"field":"OBSTN_HGT","old":"10","new":"18"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"4469fe2559cb","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: controlling obstacle: TREES 112 ft tall, 1665 ft from threshold, 541 ft right of centerline -> TREES 110 ft tall, 1688 ft from threshold, 147 ft right of centerline","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"541","new":"147"},{"field":"DIST_FROM_THR","old":"1665","new":"1688"},{"field":"OBSTN_HGT","old":"112","new":"110"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"9826805221c8","priority":"fyi","category":"runway","kind":"changed","summary":"runway 32: controlling obstacle: TREES 48 ft tall, 522 ft from threshold, 101 ft right of centerline -> TREES 43 ft tall, 527 ft from threshold, 74 ft right of centerline; obstacle clearance slope: 6:1 -> 7:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"101","new":"74"},{"field":"DIST_FROM_THR","old":"522","new":"527"},{"field":"OBSTN_CLNC_SLOPE","old":"6","new":"7"},{"field":"OBSTN_HGT","old":"48","new":"43"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"1cabfeff427e","priority":"action","category":"remark","kind":"removed","summary":"remark removed: COMMUNICATIONS PRVDD BY BANGOR RADIO ON FREQ 122.6 (KEENE RCO).","source":"ATC_RMK","original":"COMMUNICATIONS PRVDD BY BANGOR RADIO ON FREQ 122.6 (KEENE RCO)."},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"0c776ae05bc4","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route EEN -> ACK is now: EEN KEYNN T393 PVD CLAMY1 ACK"]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"f89639404d44","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 02 redrawn (still amdt 6A)","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 02","amdt":"6A","pdf":"https://aeronav.faa.gov/d-tpp/2609/00868IL2.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"99a045c7dff5","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.6 via the Keene outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"5af678b6f0b3","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":"2026-02-19","from_cycle":"2026-01-22","id":"ffa265de0d06","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: David Hickling -> Ryan Cooley","source":"APT_CON","fields":[{"field":"NAME","old":"DAVID HICKLING","new":"RYAN COOLEY"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"31a373d7cd5c","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -21C -> -20C","source":"APT_BASE","fields":[{"field":"CTA","old":"-21C","new":"-20C"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"f62d4a2b02fd","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Cold temperature airport; altitude correction required at or below -20C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -20C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -21C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -20C."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"6f888e5b7d1e","priority":"fyi","category":"navaid","kind":"changed","summary":"EEN (Keene) navaid: NOTAM accountability: BGR -> EEN","source":"NAV_BASE","fields":[{"field":"NOTAM_ID","old":"BGR","new":"EEN"}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"b3badf411790","priority":"fyi","category":"navaid","kind":"changed","summary":"EEN navaid: remark: DME UNUSBL 070T-085T BYD 25 NM BLW 9000 FT; 215T-220T BYD 25 NM BLW 5000 FT. -> DME UNUSBL 055T-070T BYD 20 NM; 090T-100T BYD 35 NM BLW 5000 FT; 190T-200T BYD 30 NM BLW 6000 FT.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"DME UNUSBL 070T-085T BYD 25 NM BLW 9000 FT; 215T-220T BYD 25 NM BLW 5000 FT.","new":"DME UNUSBL 055T-070T BYD 20 NM; 090T-100T BYD 35 NM BLW 5000 FT; 190T-200T BYD 30 NM BLW 6000 FT."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"624812ccc989","priority":"action","category":"navaid","kind":"changed","summary":"EEN (Keene) navaid: frequency changed: 109.4 -> 114.35; TACAN channel: 31X -> 90Y","source":"NAV_BASE","fields":[{"field":"CHAN","old":"31X","new":"90Y"},{"field":"FREQ","old":"109.4","new":"114.35"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"22da94b80945","priority":"action","category":"frequency","kind":"removed","summary":"frequency 109.4/31X (EEN DME) removed","source":"FRQ"},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"4587e7733db1","priority":"action","category":"frequency","kind":"added","summary":"frequency 114.35/90Y (EEN DME) added","source":"FRQ"},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"e7cc444c62a3","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: controlling obstacle changed (now 70 ft tall, 974 ft from threshold, 540 ft left of centerline, clearance slope 11:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"L"},{"field":"CNTRLN_OFFSET","old":"273","new":"540"},{"field":"DIST_FROM_THR","old":"1942","new":"974"},{"field":"OBSTN_CLNC_SLOPE","old":"10","new":"11"},{"field":"OBSTN_HGT","old":"163","new":"70"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"5069b867a2fe","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: controlling obstacle changed (now 10 ft tall, 355 ft from threshold, 37 ft right of centerline, clearance slope 15:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"189","new":"37"},{"field":"DIST_FROM_THR","old":"1803","new":"355"},{"field":"OBSTN_CLNC_SLOPE","old":"17","new":"15"},{"field":"OBSTN_HGT","old":"91","new":"10"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"c4ce54dae5a9","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: controlling obstacle changed (now 112 ft tall, 1665 ft from threshold, 541 ft right of centerline, clearance slope 13:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"450","new":"541"},{"field":"DIST_FROM_THR","old":"1115","new":"1665"},{"field":"OBSTN_CLNC_SLOPE","old":"7","new":"13"},{"field":"OBSTN_HGT","old":"121","new":"112"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"472156363411","priority":"fyi","category":"runway","kind":"changed","summary":"runway 32: controlling obstacle changed (now 48 ft tall, 522 ft from threshold, 101 ft right of centerline, clearance slope 6:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"46","new":"101"},{"field":"DIST_FROM_THR","old":"530","new":"522"},{"field":"OBSTN_CLNC_SLOPE","old":"7","new":"6"},{"field":"OBSTN_HGT","old":"44","new":"48"}]}],"first_cycle":"2024-10-31","last_cycle":"2026-10-01"}