{"schema_version":1,"airport":"BLF","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"28ec3508d294","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 23 redrawn (still amdt 16)","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 23","amdt":"16","pdf":"https://aeronav.faa.gov/d-tpp/2609/00787IL23.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"4de355f1b733","priority":"ifr","category":"chart","kind":"changed","summary":"obstacle departure BLUEFIELD ONE (OBSTACLE) changed","source":"D-TPP","chart":{"code":"ODP","name":"BLUEFIELD ONE (OBSTACLE)","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2609/00787BLUEFIELD.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"f85094607071","priority":"fyi","category":"navaid","kind":"changed","summary":"BLF (Bluefield) navaid: simultaneous voice: yes -> no; voice call: ELKINS RADIO -> NONE","source":"NAV_BASE","fields":[{"field":"SIMUL_VOICE_FLAG","old":"Y","new":"N"},{"field":"VOICE_CALL","old":"ELKINS RADIO","new":"NONE"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"5f56f01b78d7","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.1R via the Bluefield outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"1c2500a504a5","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.2 via the Bluefield outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"b9c026f6a3cf","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: FOR CD CTC INDIANAPOLIS ARTCC AT 317-247-2411.","source":"APT_RMK","original":"FOR CD CTC INDIANAPOLIS ARTCC AT 317-247-2411.","fields":[{"field":"REMARK","old":"FOR CD IF UNA TO CTC ON FSS FREQ, CTC INDIANAPOLIS ARTCC AT 317-247-2411.","new":"FOR CD CTC INDIANAPOLIS ARTCC AT 317-247-2411."}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"3cf74d6590b3","priority":"action","category":"navaid","kind":"removed","summary":"ILS RWY 23 (BLF): outer marker removed","source":"ILS_MKR","fields":[{"field":"RWY_END_ID","old":"23","new":""},{"field":"ILS_LOC_ID","old":"BLF","new":""},{"field":"SYSTEM_TYPE_CODE","old":"LS","new":""},{"field":"ILS_COMP_TYPE_CODE","old":"OM","new":""},{"field":"COMPONENT_STATUS","old":"OPERATIONAL IFR","new":""}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"011b0b721cfe","priority":"action","category":"navaid","kind":"changed","summary":"runway 23: approach bearing: 228.88 -> 228.87° magnetic; back course: unusable (U) -> none","source":"ILS_BASE","fields":[{"field":"APCH_BEAR","old":"228.88","new":"228.87"},{"field":"BK_COURSE_STATUS_CODE","old":"U","new":""}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"224acee2dd43","priority":"ifr","category":"procedure","kind":"changed","summary":"arrival/departure procedures new or updated: BLF, SOFTY","source":"STAR/DP","procedures":{"updated":["BLF","SOFTY"],"removed":[]}},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"7c7109faa403","priority":"fyi","category":"runway","kind":"changed","summary":"runway 05: runway end elevation: 2850.2 -> 2850.4 ft MSL; touchdown zone elevation: 2850.2 -> 2850.4 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"2850.2","new":"2850.4"},{"field":"TDZ_ELEV","old":"2850.2","new":"2850.4"}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"3711df6a6a9f","priority":"fyi","category":"navaid","kind":"changed","summary":"runway 23: remark: AUTOPILOT COUPLED APCHS NA BLW 3600 FT MSL. -> AUTOPILOT CPD APCH NA BLW 3600 FT MSL.","source":"ILS_RMK","fields":[{"field":"REMARK","old":"AUTOPILOT COUPLED APCHS NA BLW 3600 FT MSL.","new":"AUTOPILOT CPD APCH NA BLW 3600 FT MSL."}]},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"7fd463b04513","priority":"fyi","category":"runway","kind":"changed","summary":"runway 23: runway end elevation: 2856.4 -> 2856.5 ft MSL; touchdown zone elevation: 2856.7 -> 2856.8 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"2856.4","new":"2856.5"},{"field":"TDZ_ELEV","old":"2856.7","new":"2856.8"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"a72d9488d670","priority":"fyi","category":"navaid","kind":"changed","summary":"BLF navaid: remark: DME UNUSBL 090-120 BYD 20 NM; 120-220 BYD 20 NM BLW 10000 FT. -> DME UNUSBL 090-120 BYD 20 NM; 120-220 BYD 20 NM BLW 10000 FT; 235-245 BYD 57 NM BLW 9900 FT.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"DME UNUSBL 090-120 BYD 20 NM; 120-220 BYD 20 NM BLW 10000 FT.","new":"DME UNUSBL 090-120 BYD 20 NM; 120-220 BYD 20 NM BLW 10000 FT; 235-245 BYD 57 NM BLW 9900 FT."}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"dedf412e9a6d","priority":"fyi","category":"navaid","kind":"changed","summary":"BLF navaid: remark: VOR UNUSBL 022-032 BYD 40 NM BLW 6500 FT; 022-032 BYD 49 NM; 033-067 BYD 40 NM; 068-078 BYD 40 NM BLW 6000 FT; 068-078 BYD 50 NM; 079-248 BYD 40 NM; 275-282 BYD 40 NM; 283-293 BYD 40 NM BLW 10000 FT; 283-293 BYD 86 NM; 294-021 BYD 40 NM. -> VOR UNUSBL 022-032 BYD 40 NM BLW 6500 FT; 022-032 BYD 49 NM; 033-067 BYD 40 NM; 068-078 BYD 40 NM BLW 6000 FT; 068-078 BYD 50 NM; 079-234 BYD 40 NM; 235-245 BYD 57 NM BLW 9900 FT; 246-248 BYD 40 NM; 275-282 BYD 40 NM; 283-293 BYD 40 NM BLW 10000 FT; 283-293 BYD 86 NM; 294-021 BYD 40 NM.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"VOR UNUSBL 022-032 BYD 40 NM BLW 6500 FT; 022-032 BYD 49 NM; 033-067 BYD 40 NM; 068-078 BYD 40 NM BLW 6000 FT; 068-078 BYD 50 NM; 079-248 BYD 40 NM; 275-282 BYD 40 NM; 283-293 BYD 40 NM BLW 10000 FT; 283-293 BYD 86 NM; 294-021 BYD 40 NM.","new":"VOR UNUSBL 022-032 BYD 40 NM BLW 6500 FT; 022-032 BYD 49 NM; 033-067 BYD 40 NM; 068-078 BYD 40 NM BLW 6000 FT; 068-078 BYD 50 NM; 079-234 BYD 40 NM; 235-245 BYD 57 NM BLW 9900 FT; 246-248 BYD 40 NM; 275-282 BYD 40 NM; 283-293 BYD 40 NM BLW 10000 FT; 283-293 BYD 86 NM; 294-021 BYD 40 NM."}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"92f6987b2021","priority":"ifr","category":"procedure","kind":"changed","summary":"arrival/departure procedures new or updated: none; removed: OBERS","source":"STAR/DP","procedures":{"updated":[],"removed":["OBERS"]}},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"b76773fdf2fa","priority":"action","category":"navaid","kind":"changed","summary":"BLF (Bluefield) navaid: status: OPERATIONAL IFR -> OPERATIONAL RESTRICTED","source":"NAV_BASE","fields":[{"field":"NAV_STATUS","old":"OPERATIONAL IFR","new":"OPERATIONAL RESTRICTED"}]},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"8a6d5398b876","priority":"ifr","category":"navaid","kind":"added","summary":"new navaid remark: VOR UNUSBL 022-032 BYD 40 NM BLW 6500 FT; 022-032 BYD 49 NM; 033-067 BYD 40 NM; 068-078 BYD 40 NM BLW 6000 FT; 068-078 BYD 50 NM; 079-248 BYD 40 NM; 275-282 BYD 40 NM; 283-293 BYD 40 NM BLW 10000 FT; 283-293 BYD 86 NM; 294-021 BYD 40 NM.","source":"NAV_RMK","original":"VOR UNUSBL 022-032 BYD 40 NM BLW 6500 FT; 022-032 BYD 49 NM; 033-067 BYD 40 NM; 068-078 BYD 40 NM BLW 6000 FT; 068-078 BYD 50 NM; 079-248 BYD 40 NM; 275-282 BYD 40 NM; 283-293 BYD 40 NM BLW 10000 FT; 283-293 BYD 86 NM; 294-021 BYD 40 NM."}],"first_cycle":"2024-12-26","last_cycle":"2026-09-03"}