{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"Y91","counts":{"action":2,"ifr":0,"fyi":16},"changes":[{"id":"8ee66cd15df5","priority":"action","category":"runway","kind":"changed","summary":"runway 09/27: edge light intensity: low -> non-standard lighting system (NSTD)","source":"APT_RWY","fields":[{"field":"RWY_LGT_CODE","old":"LOW","new":"NSTD"}]},{"id":"a33ee311ca16","priority":"action","category":"runway","kind":"changed","summary":"runway 18/36: edge light intensity: low -> non-standard lighting system (NSTD)","source":"APT_RWY","fields":[{"field":"RWY_LGT_CODE","old":"LOW","new":"NSTD"}]},{"id":"fe63a08a97da","priority":"fyi","category":"airport","kind":"changed","summary":"airport manager zip+4: 9205 -> 8787","source":"APT_CON","fields":[{"field":"ZIP_PLUS_FOUR","old":"9205","new":"8787"}]},{"id":"b96c60129768","priority":"fyi","category":"airport","kind":"changed","summary":"airport owner zip+4: 7707 -> 8787","source":"APT_CON","fields":[{"field":"ZIP_PLUS_FOUR","old":"7707","new":"8787"}]},{"id":"c8ec2d43f3d9","priority":"fyi","category":"airport","kind":"changed","summary":"direction from the city's business district: E -> ESE","source":"APT_BASE","fields":[{"field":"DIRECTION_CODE","old":"E","new":"ESE"}]},{"id":"4ddbf09149e0","priority":"fyi","category":"remark","kind":"added","summary":"new airport transient tie-down storage remark: tiedown area located south of PILOTS LOUNGE; ropes not provided.","source":"APT_RMK","original":"TIEDOWN AREA LCTD SOUTH OF PILOTS LOUNGE; ROPES NOT PRVDD."},{"id":"a1b38179034f","priority":"fyi","category":"remark","kind":"added","summary":"new runway 09/27 edge light intensity remark: Nonstandard Low Intensity Runway Lights due to light fixtures.","source":"APT_RMK","original":"NSTD LIRL DUE TO LGT FIXTURES."},{"id":"e647b191d9b8","priority":"fyi","category":"remark","kind":"added","summary":"new runway 18/36 edge light intensity remark: Nonstandard Low Intensity Runway Lights due to light fixtures.","source":"APT_RMK","original":"NSTD LIRL DUE TO LGT FIXTURES."},{"id":"c2e40ae17fda","priority":"fyi","category":"remark","kind":"added","summary":"new runway 36 controlling obstacle remark: Also +15 foot road, 28 feet distance, 125 foot L/R.","source":"APT_RMK","original":"ALSO +15 FT ROAD, 28 FT DIST, 125 FT L/R."},{"id":"be6ecc2ed464","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Activate nonstandard Low Intensity Runway Lights runway 09/27 & 18/36 - click the mic on CTAF.","source":"APT_RMK","original":"ACTVT NSTD LIRL RWY 09/27 & 18/36 - CTAF.","fields":[{"field":"REMARK","old":"ACTVT LIRL RWY 09/27 & 18/36 - CTAF.","new":"ACTVT NSTD LIRL RWY 09/27 & 18/36 - CTAF."}]},{"id":"20f48c894d6a","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Approach slope 10:1 to Displaced runway threshold over 88 foot trees, 952 feet distance, 150 foot L.","source":"APT_RMK","original":"APCH SLP 10:1 TO DTHR OVR 88 FT TREES, 952 FT DIST, 150 FT L.","fields":[{"field":"REMARK","old":"APCH RATIO 14:1 TO DTHR OVR 68 FT TREES, 952 FT DIST, 150 FT L.","new":"APCH SLP 10:1 TO DTHR OVR 88 FT TREES, 952 FT DIST, 150 FT L."}]},{"id":"30a510789c3a","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Approach slope 3:1 to Displaced runway threshold over 45 foot trees, 130 feet distance, 135 foot right.","source":"APT_RMK","original":"APCH SLP 3:1 TO DTHR OVR 45 FT TREES, 130 FT DIST, 135 FT R.","fields":[{"field":"REMARK","old":"APCH RATIO 3:1 TO DTHR OVR 41 FT TREES, 130 FT DIST, 135 FT R.","new":"APCH SLP 3:1 TO DTHR OVR 45 FT TREES, 130 FT DIST, 135 FT R."}]},{"id":"0ce7343cbd20","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Deer, birds, and wildlife on and in the vicinity of airport.","source":"APT_RMK","original":"DEER, BIRDS, AND WILDLIFE ON AND INVOF ARPT.","fields":[{"field":"REMARK","old":"DEER & BIRDS ON & INVOF ARPT.","new":"DEER, BIRDS, AND WILDLIFE ON AND INVOF ARPT."}]},{"id":"3dc0e8a487e5","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: No snow removal - call airport manager for field conditions.","source":"APT_RMK","original":"NO SN REMOVAL - CALL AMGR FOR FLD CONDS.","fields":[{"field":"REMARK","old":"NO SNOW REMOVAL - CALL AMGR FOR FLD CONDS.","new":"NO SN REMOVAL - CALL AMGR FOR FLD CONDS."}]},{"id":"91f8d7086569","priority":"fyi","category":"runway","kind":"changed","summary":"runway 09: controlling obstacle: ROAD 15 ft tall, 46 ft from threshold, 130 ft off centerline -> ROAD 16 ft tall, 38 ft from threshold, 129 ft off centerline; obstacle clearance slope: 3:1 -> 2:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"130","new":"129"},{"field":"DIST_FROM_THR","old":"46","new":"38"},{"field":"OBSTN_CLNC_SLOPE","old":"3","new":"2"},{"field":"OBSTN_HGT","old":"15","new":"16"}]},{"id":"16569ebdcc5d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 18: controlling obstacle: ROAD 15 ft tall, 43 ft from threshold, 129 ft off centerline -> ROAD 16 ft tall, 28 ft from threshold, 125 ft off centerline; obstacle clearance slope: 2:1 -> 1:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"129","new":"125"},{"field":"DIST_FROM_THR","old":"43","new":"28"},{"field":"OBSTN_CLNC_SLOPE","old":"2","new":"1"},{"field":"OBSTN_HGT","old":"15","new":"16"}]},{"id":"25d361a84b99","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: controlling obstacle: TREES 65 ft tall, 55 ft from threshold, 80 ft right of centerline -> TREES 72 ft tall, 65 ft from threshold, 126 ft right of centerline","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"80","new":"126"},{"field":"DIST_FROM_THR","old":"55","new":"65"},{"field":"OBSTN_HGT","old":"65","new":"72"}]},{"id":"938078e9e679","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle: TREES 68 ft tall, 556 ft from threshold, 150 ft left of centerline -> TREES 38 ft tall, 70 ft from threshold, 128 ft left of centerline; obstacle clearance slope: 8:1 -> 1:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"150","new":"128"},{"field":"DIST_FROM_THR","old":"556","new":"70"},{"field":"OBSTN_CLNC_SLOPE","old":"8","new":"1"},{"field":"OBSTN_HGT","old":"68","new":"38"}]}]}