{"schema_version":1,"airport":"BTP","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"21892650b912","priority":"fyi","category":"runway","kind":"changed","summary":"runway 08: controlling obstacle: TREES 52 ft tall, 957 ft from threshold, 574 ft right of centerline -> TREES 55 ft tall, 957 ft from threshold, 574 ft right of centerline; obstacle clearance slope: 14:1 -> 13:1","source":"APT_RWY_END","fields":[{"field":"OBSTN_CLNC_SLOPE","old":"14","new":"13"},{"field":"OBSTN_HGT","old":"52","new":"55"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"57da30bdd23f","priority":"fyi","category":"runway","kind":"changed","summary":"runway 26: controlling obstacle: TREES 38 ft tall, 819 ft from threshold, 11 ft left of centerline -> TREES 45 ft tall, 1053 ft from threshold, 190 ft left of centerline; obstacle clearance slope: 16:1 -> 18:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"11","new":"190"},{"field":"DIST_FROM_THR","old":"819","new":"1053"},{"field":"OBSTN_CLNC_SLOPE","old":"16","new":"18"},{"field":"OBSTN_HGT","old":"38","new":"45"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"4b89010d927c","priority":"action","category":"remark","kind":"removed","summary":"remark removed: COMMUNICATIONS PRVDD BY ALTOONA RADIO ON FREQS 122.1R/115.8T (ELLWOOD CITY RCO).","source":"ATC_RMK","original":"COMMUNICATIONS PRVDD BY ALTOONA RADIO ON FREQS 122.1R/115.8T (ELLWOOD CITY RCO)."},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"24704c0c238e","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 08 redrawn (still amdt 10A)","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 08","amdt":"10A","pdf":"https://aeronav.faa.gov/d-tpp/2609/00899IL8.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"dccc8317a416","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.1R via the Ellwood City outlet no longer available","source":"FRQ"},{"cycle":"2026-02-19","from_cycle":"2026-01-22","id":"480ccf48448a","priority":"fyi","category":"airport","kind":"changed","summary":"landing fee now charged","source":"APT_BASE","fields":[{"field":"LNDG_FEE_FLAG","old":"","new":"Y"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"b00fdadf7859","priority":"fyi","category":"runway","kind":"changed","summary":"runway 08: controlling obstacle changed (now 52 ft tall, 957 ft from threshold, 574 ft right of centerline, clearance slope 14:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"51","new":"52"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"461faac4c936","priority":"fyi","category":"runway","kind":"changed","summary":"runway 26: controlling obstacle changed (now 38 ft tall, 819 ft from threshold, 11 ft left of centerline, clearance slope 16:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"37","new":"38"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"d01bc4eade90","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: Runway 08 has 5 foot brush 93 feet from threshold, 129 feet to the right.","source":"APT_RMK","original":"RWY 08 5 FT BRUSH 93 FT FM THR 129 FT RIGHT."},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"2c507967a408","priority":"fyi","category":"runway","kind":"changed","summary":"runway 08: controlling obstacle changed (now 51 ft tall, 957 ft from threshold, 574 ft right of centerline, clearance slope 14:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_CLNC_SLOPE","old":"15","new":"14"},{"field":"OBSTN_HGT","old":"49","new":"51"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"8397050a91c3","priority":"fyi","category":"runway","kind":"changed","summary":"runway 26: controlling obstacle changed (now 37 ft tall, 819 ft from threshold, 11 ft left of centerline, clearance slope 16:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_CLNC_SLOPE","old":"17","new":"16"},{"field":"OBSTN_HGT","old":"35","new":"37"}]}],"first_cycle":"2024-10-31","last_cycle":"2026-10-01"}