{"schema_version":1,"airport":"87Y","entries":[{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"30a86b5fd401","priority":"action","category":"runway","kind":"changed","summary":"runway 09/27: length: 2203 -> 2150 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"2203","new":"2150"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"80d63597aa20","priority":"action","category":"runway","kind":"changed","summary":"runway 27: displaced threshold: 230 -> 180 ft","source":"APT_RWY_END","fields":[{"field":"DISPLACED_THR_LEN","old":"230","new":"180"}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"0cbaba27751d","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: 35 FT TREE 45 FT FM THR, 50 FT R.","source":"APT_RMK","original":"35 FT TREE 45 FT FM THR, 50 FT R.","fields":[{"field":"REMARK","old":"20 FT BRUSH 10 FT FM THR.","new":"35 FT TREE 45 FT FM THR, 50 FT R."}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"4d86e7b4aaa6","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: NSTD LIRL; RWY LGTS 2 FT TO 3 FT ABOVE RWY & NSTD SPACING. RWY 09/27 LGTD 1970 FT.","source":"APT_RMK","original":"NSTD LIRL; RWY LGTS 2 FT TO 3 FT ABOVE RWY & NSTD SPACING. RWY 09/27 LGTD 1970 FT.","fields":[{"field":"REMARK","old":"NSTD LIRL; RWY LGTS 2 FT TO 3 FT ABOVE RWY & NSTD SPACING. RWY 09/27 LGTD 1973 FT.","new":"NSTD LIRL; RWY LGTS 2 FT TO 3 FT ABOVE RWY & NSTD SPACING. RWY 09/27 LGTD 1970 FT."}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"9d13e2444e94","priority":"fyi","category":"runway","kind":"changed","summary":"runway 04: controlling obstacle changed (now 40 ft tall, 265 ft from threshold, 55 ft left of centerline, clearance slope 1:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"L"},{"field":"CNTRLN_OFFSET","old":"15","new":"55"},{"field":"DIST_FROM_THR","old":"334","new":"265"},{"field":"OBSTN_CLNC_SLOPE","old":"2","new":"1"},{"field":"OBSTN_HGT","old":"49","new":"40"}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"dedaf5cb44bf","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: controlling obstacle changed (now 16 ft tall, 317 ft from threshold, 0 ft either side of centerline, clearance slope 7:1)","source":"APT_RWY_END","fields":[{"field":"DIST_FROM_THR","old":"257","new":"317"},{"field":"OBSTN_CLNC_SLOPE","old":"4","new":"7"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"1c4ea0bea374","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -24C -> -23C","source":"APT_BASE","fields":[{"field":"CTA","old":"-24C","new":"-23C"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"e0aec73d667e","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Cold temperature airport; altitude correction required at or below -23C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -23C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -24C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -23C."}]}],"first_cycle":"2025-10-02","last_cycle":"2026-03-19"}