{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"6Y9","counts":{"action":0,"ifr":0,"fyi":5},"changes":[{"id":"44be9807f6a9","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: A controlling obstacle exceeds a 45 degree slope.","source":"APT_RMK","original":"CTLG OBSTN EXCEEDS A 45 DEG SLP.","fields":[{"field":"REMARK","old":"APCH SLP 14:1 TO DTHR OVR 82 FT TREES, 1174 FT DIST, 30 FT L.","new":"CTLG OBSTN EXCEEDS A 45 DEG SLP."}]},{"id":"64939b07a9dc","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Southern Houghton CO airport and Heritage Association.","source":"APT_RMK","original":"SOUTHERN HOUGHTON CO ARPT & HERITAGE ASSOCIATION.","fields":[{"field":"REMARK","old":"SOUTHERN HOUGHTON COUNTY AIRPORT & HERITAGE ASSOCIATION.","new":"SOUTHERN HOUGHTON CO ARPT & HERITAGE ASSOCIATION."}]},{"id":"fe468ca1b831","priority":"fyi","category":"runway","kind":"changed","summary":"runway 10/28: pavement condition: good -> fair","source":"APT_RWY","fields":[{"field":"COND","old":"GOOD","new":"FAIR"}]},{"id":"d8ef97a2a12c","priority":"fyi","category":"runway","kind":"changed","summary":"runway 10: controlling obstacle: POLE 30 ft tall, 300 ft from threshold, 51 ft right of centerline -> BRUSH 12 ft tall, 0 ft from threshold, 91 ft left of centerline; obstacle clearance slope: 10:1 -> 0:1; controlling obstacle marking: marked (M) -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"L"},{"field":"CNTRLN_OFFSET","old":"51","new":"91"},{"field":"DIST_FROM_THR","old":"300","new":"0"},{"field":"OBSTN_CLNC_SLOPE","old":"10","new":"0"},{"field":"OBSTN_HGT","old":"30","new":"12"},{"field":"OBSTN_MRKD_CODE","old":"M","new":""},{"field":"OBSTN_TYPE","old":"POLE","new":"BRUSH"}]},{"id":"4b5f5c6ab393","priority":"fyi","category":"runway","kind":"changed","summary":"runway 28: controlling obstacle: TREES 23 ft tall, 113 ft from threshold, 40 ft right of centerline -> BRUSH 4 ft tall, 0 ft from threshold, 102 ft left of centerline; obstacle clearance slope: 4:1 -> 0:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"L"},{"field":"CNTRLN_OFFSET","old":"40","new":"102"},{"field":"DIST_FROM_THR","old":"113","new":"0"},{"field":"OBSTN_CLNC_SLOPE","old":"4","new":"0"},{"field":"OBSTN_HGT","old":"23","new":"4"},{"field":"OBSTN_TYPE","old":"TREES","new":"BRUSH"}]}]}