{"schema_version":1,"airport":"DHN","entries":[{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"79e029c4470d","priority":"action","category":"runway","kind":"changed","summary":"runway 14/32: length: 8499 -> 8500 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"8499","new":"8500"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"66f4fa18137a","priority":"action","category":"navaid","kind":"changed","summary":"runway 14: ILS runway length: 8499 -> 8500 ft","source":"ILS_BASE","fields":[{"field":"RWY_LEN","old":"8499","new":"8500"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"5f18dc58c91f","priority":"action","category":"runway","kind":"changed","summary":"runway 18/36: length: 5498 -> 5501 ft; edge light intensity: high -> medium (MED); width: 100 -> 102 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"5498","new":"5501"},{"field":"RWY_LGT_CODE","old":"HIGH","new":"MED"},{"field":"RWY_WIDTH","old":"100","new":"102"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"16fb6b512558","priority":"action","category":"runway","kind":"changed","summary":"runway 18: declared distances changed: takeoff run available (TORA) 5,500 ft -> 5,501 ft; takeoff distance available (TODA) 5,500 ft -> 5,501 ft; accelerate-stop distance available (ASDA) 5,500 ft -> 5,501 ft; landing distance available (LDA) 5,000 ft -> 5,401 ft; displaced threshold elevation: 393.1 -> 394.5 ft MSL; displaced threshold: 499 -> 100 ft; touchdown zone elevation: 393.1 -> 394.5 ft MSL; threshold crossing height: 40 -> 48 ft AGL","source":"APT_RWY_END","fields":[{"field":"ACLT_STOP_DIST_AVBL","old":"5500","new":"5501"},{"field":"DISPLACED_THR_ELEV","old":"393.1","new":"394.5"},{"field":"DISPLACED_THR_LEN","old":"499","new":"100"},{"field":"LNDG_DIST_AVBL","old":"5000","new":"5401"},{"field":"TDZ_ELEV","old":"393.1","new":"394.5"},{"field":"THR_CROSSING_HGT","old":"40","new":"48"},{"field":"TKOF_DIST_AVBL","old":"5500","new":"5501"},{"field":"TKOF_RUN_AVBL","old":"5500","new":"5501"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"80665310f731","priority":"action","category":"navaid","kind":"changed","summary":"runway 32: ILS runway length: 8499 -> 8500 ft","source":"ILS_BASE","fields":[{"field":"RWY_LEN","old":"8499","new":"8500"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"23e7138c86cc","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; MIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","source":"APT_RMK","original":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; MIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","fields":[{"field":"REMARK","old":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","new":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; MIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103."}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"bfe861a1e3a4","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103. -> WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; MIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","source":"FRQ","fields":[{"field":"REMARK","old":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","new":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; MIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103."}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"7d9e039f67a1","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: declared distances changed: takeoff run available (TORA) 8,496 ft -> 8,500 ft; takeoff distance available (TODA) 8,496 ft -> 8,500 ft; accelerate-stop distance available (ASDA) 8,496 ft -> 8,500 ft; landing distance available (LDA) 8,496 ft -> 8,500 ft; runway end elevation: 400.6 -> 400.5 ft MSL; threshold crossing height: 40 -> 55 ft AGL","source":"APT_RWY_END","fields":[{"field":"ACLT_STOP_DIST_AVBL","old":"8496","new":"8500"},{"field":"LNDG_DIST_AVBL","old":"8496","new":"8500"},{"field":"RWY_END_ELEV","old":"400.6","new":"400.5"},{"field":"THR_CROSSING_HGT","old":"40","new":"55"},{"field":"TKOF_DIST_AVBL","old":"8496","new":"8500"},{"field":"TKOF_RUN_AVBL","old":"8496","new":"8500"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"d6dbbe521396","priority":"fyi","category":"runway","kind":"changed","summary":"runway 32: declared distances changed: takeoff run available (TORA) 8,496 ft -> 8,500 ft; takeoff distance available (TODA) 8,496 ft -> 8,500 ft; accelerate-stop distance available (ASDA) 8,496 ft -> 8,500 ft; landing distance available (LDA) 8,496 ft -> 8,500 ft; touchdown zone elevation: 381.7 -> 381.6 ft MSL","source":"APT_RWY_END","fields":[{"field":"ACLT_STOP_DIST_AVBL","old":"8496","new":"8500"},{"field":"LNDG_DIST_AVBL","old":"8496","new":"8500"},{"field":"TDZ_ELEV","old":"381.7","new":"381.6"},{"field":"TKOF_DIST_AVBL","old":"8496","new":"8500"},{"field":"TKOF_RUN_AVBL","old":"8496","new":"8500"}]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"5e19afd93496","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: declared distances changed: takeoff run available (TORA) 5,000 ft -> 5,401 ft; takeoff distance available (TODA) 5,000 ft -> 5,401 ft; accelerate-stop distance available (ASDA) 5,000 ft -> 5,501 ft; landing distance available (LDA) 5,000 ft -> 5,501 ft; runway end elevation: 378.4 -> 378.3 ft MSL","source":"APT_RWY_END","fields":[{"field":"ACLT_STOP_DIST_AVBL","old":"5000","new":"5501"},{"field":"LNDG_DIST_AVBL","old":"5000","new":"5501"},{"field":"RWY_END_ELEV","old":"378.4","new":"378.3"},{"field":"TKOF_DIST_AVBL","old":"5000","new":"5401"},{"field":"TKOF_RUN_AVBL","old":"5000","new":"5401"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"d4123b75c43f","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","source":"APT_RMK","original":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","fields":[{"field":"REMARK","old":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.  REIL RWY 18 OPR BY ATCT WHEN RWY 18 ACTV.","new":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103."}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"62ea535011b4","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.  REIL RWY 18 OPR BY ATCT WHEN RWY 18 ACTV. -> WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.","source":"FRQ","fields":[{"field":"REMARK","old":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103.  REIL RWY 18 OPR BY ATCT WHEN RWY 18 ACTV.","new":"WHEN ATCT CLSD, ACTVT MALSR RWY 32; REIL RWY 14 & 18; PAPI RWY 14; HIRL RWY 14/32 - CTAF. PAPI RWY 18; HIRL RWY 18/36 AVBL BY PRIOR REQ DURG ATNDD HRS, CALL 334-983-8100/8103."}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"40a9643b4ebd","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: HEL RUNNING SKID LDG TRNG NA.","source":"APT_RMK","original":"HEL RUNNING SKID LDG TRNG NA."}],"first_cycle":"2025-02-20","last_cycle":"2026-01-22"}