{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"RKD","counts":{"action":0,"ifr":0,"fyi":5},"changes":[{"id":"1a685380b110","priority":"fyi","category":"airport","kind":"changed","summary":"airport owner zip+4: none -> 2836","source":"APT_CON","fields":[{"field":"ZIP_PLUS_FOUR","old":"","new":"2836"}]},{"id":"cf9a161a118a","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number: 207-701-1715 -> 207-594-4131; airport manager address: 5 AIRPORT RD -> 25 AIRPORT RD","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"5 AIRPORT RD","new":"25 AIRPORT RD"},{"field":"PHONE_NO","old":"207-701-1715","new":"207-594-4131"}]},{"id":"741efafc7947","priority":"fyi","category":"airport","kind":"changed","summary":"landing fee: none -> charged","source":"APT_BASE","fields":[{"field":"LNDG_FEE_FLAG","old":"N","new":"Y"}]},{"id":"1d3d61295f12","priority":"fyi","category":"runway","kind":"changed","summary":"runway 03: controlling obstacle: TREES 26 ft tall, 357 ft from threshold, 270 ft right of centerline -> TREES 35 ft tall, 300 ft from threshold, 270 ft right of centerline; obstacle clearance slope: 6:1 -> 2:1","source":"APT_RWY_END","fields":[{"field":"DIST_FROM_THR","old":"357","new":"300"},{"field":"OBSTN_CLNC_SLOPE","old":"6","new":"2"},{"field":"OBSTN_HGT","old":"26","new":"35"}]},{"id":"85e80d899b49","priority":"fyi","category":"runway","kind":"changed","summary":"runway 21: controlling obstacle: TREES 50 ft tall, 525 ft from threshold, 250 ft left of centerline -> TREES 55 ft tall, 540 ft from threshold, 300 ft left of centerline","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"250","new":"300"},{"field":"DIST_FROM_THR","old":"525","new":"540"},{"field":"OBSTN_HGT","old":"50","new":"55"}]}]}