{"schema_version":1,"airport":"8D4","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"aba7bc5d43ca","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: 156 E DIVISION ST -> 276 W DIVISION ST","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"156 E DIVISION ST","new":"276 W DIVISION ST"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"8f47ff4cb310","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 07 amended (amdt 0D)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 07","amdt":"0D","pdf":"https://aeronav.faa.gov/d-tpp/2607/06186R7.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"0f9a5f562f0f","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 25 amended (amdt 0D)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 25","amdt":"0D","pdf":"https://aeronav.faa.gov/d-tpp/2607/06186R25.PDF"}},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"2fdb0e4b9067","priority":"fyi","category":"airport","kind":"changed","summary":"distance from the city's business district: 3 -> 2; fuel: added Jet A, kerosene, with FS-II (A+)","source":"APT_BASE","fields":[{"field":"DIST_CITY_TO_AIRPORT","old":"3","new":"2"},{"field":"FUEL_TYPES","old":"100LL,MOGAS","new":"100LL,A+,MOGAS"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"85a7090739e9","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: 100LL & JET A+ AVBL H24 SELF SVC VIA CREDIT CARD.","source":"APT_RMK","original":"100LL & JET A+ AVBL H24 SELF SVC VIA CREDIT CARD.","fields":[{"field":"REMARK","old":"FUEL AVBL H24 SELF SVC VIA CREDIT CARD.","new":"100LL & JET A+ AVBL H24 SELF SVC VIA CREDIT CARD."}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"cb5c76132d83","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: CALM WIND RWY.","source":"APT_RMK","original":"CALM WIND RWY."},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"9cf91789219e","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: Unattended major holidays.","source":"APT_RMK","original":"UNATNDD MAJOR HOLS."},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"312f3d4b08f6","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Deer and large birds on and in vicinity of airport.","source":"APT_RMK","original":"DEER & LRG BIRDS ON & INVOF ARPT.","fields":[{"field":"REMARK","old":"BIRDS & DEER ON & INVOF ARPT.","new":"DEER & LRG BIRDS ON & INVOF ARPT."}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"411a04ce7f68","priority":"fyi","category":"runway","kind":"changed","summary":"runway 07: controlling obstacle changed (now 27 ft tall, 471 ft from threshold, 166 ft left of centerline, clearance slope 10:1); controlling obstacle: TREES -> TREE","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"158","new":"166"},{"field":"DIST_FROM_THR","old":"504","new":"471"},{"field":"OBSTN_CLNC_SLOPE","old":"15","new":"10"},{"field":"OBSTN_HGT","old":"20","new":"27"},{"field":"OBSTN_TYPE","old":"TREES","new":"TREE"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"54c5f3bc1af1","priority":"fyi","category":"runway","kind":"changed","summary":"runway 25: controlling obstacle changed (now 34 ft tall, 716 ft from threshold, 342 ft right of centerline, clearance slope 15:1); controlling obstacle: none -> TREE","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"","new":"R"},{"field":"CNTRLN_OFFSET","old":"","new":"342"},{"field":"DIST_FROM_THR","old":"","new":"716"},{"field":"OBSTN_CLNC_SLOPE","old":"20","new":"15"},{"field":"OBSTN_HGT","old":"","new":"34"},{"field":"OBSTN_TYPE","old":"","new":"TREE"}]},{"cycle":"2025-04-17","from_cycle":"2025-03-20","id":"853526dd5e3b","priority":"action","category":"airport","kind":"removed","summary":"airport attendance schedule: dropped SAT-SUN IREG","source":"APT_ATT"},{"cycle":"2025-04-17","from_cycle":"2025-03-20","id":"fd0168e3e573","priority":"fyi","category":"frequency","kind":"added","summary":"frequency 257.6 now also listed for GRAND RAPIDS RCAG","source":"FRQ"},{"cycle":"2025-04-17","from_cycle":"2025-03-20","id":"7767aaf839c3","priority":"fyi","category":"airport","kind":"changed","summary":"NOTAM facility: LAN -> 8D4","source":"APT_BASE","fields":[{"field":"NOTAM_ID","old":"LAN","new":"8D4"}]},{"cycle":"2025-04-17","from_cycle":"2025-03-20","id":"eed7b3189d4f","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: PWRD PRCHT OPS NORTH SIDE OF RWY.","source":"APT_RMK","original":"PWRD PRCHT OPS NORTH SIDE OF RWY."},{"cycle":"2025-04-17","from_cycle":"2025-03-20","id":"d6ae7d73c7f2","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Administrative building access code is 5-3-2-1.","source":"APT_RMK","original":"ADMIN BLDG ACES: 5-3-2-1.","fields":[{"field":"REMARK","old":"ADMIN BLDG ACES: PRESS 5-3-2-1.","new":"ADMIN BLDG ACES: 5-3-2-1."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"04ba7adbd98e","priority":"action","category":"frequency","kind":"added","summary":"frequency 126.650 (8D4 AWOS-3PT) added","source":"FRQ"},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"2389a4d61df8","priority":"action","category":"frequency","kind":"removed","summary":"frequency 132.95 (8D4 AWOS-3PT) removed","source":"FRQ"}],"first_cycle":"2024-10-31","last_cycle":"2026-09-03"}