{"schema_version":1,"airport":"GDM","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"12d1562a0c7f","priority":"ifr","category":"chart","kind":"changed","summary":"approach VOR-A redrawn (still amdt 6C)","source":"D-TPP","chart":{"code":"IAP","name":"VOR-A","amdt":"6C","pdf":"https://aeronav.faa.gov/d-tpp/2609/05289VA.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"a43892ef4bd3","priority":"fyi","category":"navaid","kind":"changed","summary":"GDM (Gardner) navaid: simultaneous voice: yes -> no; voice call: BRIDGEPORT RADIO -> NONE","source":"NAV_BASE","fields":[{"field":"SIMUL_VOICE_FLAG","old":"Y","new":"N"},{"field":"VOICE_CALL","old":"BRIDGEPORT RADIO","new":"NONE"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"459b0602814d","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.1R via the Gardner outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"5d62bb78be9e","priority":"fyi","category":"remark","kind":"added","summary":"new remark: For clearance delivery contact Boston ARTCC at 603-879-6859.","source":"APT_RMK","original":"FOR CD CTC BOSTON ARTCC AT 603-879-6859."},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"422f748c738c","priority":"action","category":"navaid","kind":"changed","summary":"GDM (Gardner) navaid: status: operational ifr","source":"NAV_BASE","fields":[{"field":"TACAN_DME_STATUS","old":"","new":"OPERATIONAL IFR"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"f35badbdcea2","priority":"action","category":"runway","kind":"changed","summary":"runway 18/36: length: 3000 -> 3001 ft; width: 75 -> 60 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"3000","new":"3001"},{"field":"RWY_WIDTH","old":"75","new":"60"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"9c2029a96d16","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: runway end elevation: 923.8 -> 923.9 ft MSL; touchdown zone elevation: 954.1 -> 954 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"923.8","new":"923.9"},{"field":"TDZ_ELEV","old":"954.1","new":"954"}]}],"first_cycle":"2025-05-15","last_cycle":"2026-09-03"}