{"schema_version":1,"airport":"0A9","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"90a9e60980d4","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 06 amended (amdt 1A)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 06","amdt":"1A","pdf":"https://aeronav.faa.gov/d-tpp/2609/09816R6.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"aa081a039642","priority":"fyi","category":"airport","kind":"changed","summary":"segmented circle: yes -> no","source":"APT_BASE","fields":[{"field":"SEG_CIRCLE_MKR_FLAG","old":"Y","new":"N"}]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"a404d5e82162","priority":"fyi","category":"airport","kind":"changed","summary":"land area: 96 -> 163 acres","source":"APT_BASE","fields":[{"field":"ACREAGE","old":"96","new":"163"}]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"51510e13827c","priority":"fyi","category":"runway","kind":"changed","summary":"runway 06: controlling obstacle changed (now 21 ft tall, 840 ft from threshold, 6 ft either side of centerline, clearance slope 30:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"B"},{"field":"CNTRLN_OFFSET","old":"380","new":"6"},{"field":"DIST_FROM_THR","old":"1622","new":"840"},{"field":"OBSTN_CLNC_SLOPE","old":"12","new":"30"},{"field":"OBSTN_HGT","old":"117","new":"21"}]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"5f31890dd36a","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: controlling obstacle changed (now 156 ft tall, 3108 ft from threshold, 166 ft right of centerline, clearance slope 18:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"9","new":"166"},{"field":"DIST_FROM_THR","old":"976","new":"3108"},{"field":"OBSTN_CLNC_SLOPE","old":"10","new":"18"},{"field":"OBSTN_HGT","old":"73","new":"156"}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"f82f8db8f159","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Elizabethton Muni -> William B Greene Jr Rgnl","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"ELIZABETHTON MUNI","new":"WILLIAM B GREENE JR RGNL"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"5386b77e174c","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -13C -> -10C","source":"APT_BASE","fields":[{"field":"CTA","old":"-13C","new":"-10C"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"ce8b7a6b9409","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Cold temperature airport; altitude correction required at or below -10C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -10C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -13C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -10C."}]}],"first_cycle":"2025-08-07","last_cycle":"2026-09-03"}