{"schema_version":1,"airport":"9Y1","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"4efbb4ad477e","priority":"action","category":"remark","kind":"changed","summary":"remark updated: ACTVT HIRL RWY 13/31 & PAPI RWY 13/31 - CTAF","source":"APT_RMK","original":"ACTVT HIRL RWY 13/31 & PAPI RWY 13/31 - CTAF","fields":[{"field":"REMARK","old":"ACTVT PAPI RWY 13 & 31; MIRL RWY 13/31 - CTAF.","new":"ACTVT HIRL RWY 13/31 & PAPI RWY 13/31 - CTAF"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"b6af677dc720","priority":"action","category":"frequency","kind":"changed","summary":"remark: ACTVT PAPI RWY 13 & 31; MIRL RWY 13/31 - CTAF. -> ACTVT HIRL RWY 13/31 & PAPI RWY 13/31 - CTAF","source":"FRQ","fields":[{"field":"REMARK","old":"ACTVT PAPI RWY 13 & 31; MIRL RWY 13/31 - CTAF.","new":"ACTVT HIRL RWY 13/31 & PAPI RWY 13/31 - CTAF"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"09e7176508d7","priority":"action","category":"runway","kind":"changed","summary":"runway 13/31: edge light intensity: medium (MED) -> high","source":"APT_RWY","fields":[{"field":"RWY_LGT_CODE","old":"MED","new":"HIGH"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"117bcaa910df","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 13 redrawn (still original)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 13","amdt":"0","pdf":"https://aeronav.faa.gov/d-tpp/2609/10791R13.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"d8f27a04876d","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 31 redrawn (still original)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 31","amdt":"0","pdf":"https://aeronav.faa.gov/d-tpp/2609/10791R31.PDF"}},{"cycle":"2026-08-06","from_cycle":"2026-07-09","id":"b0eaca8aced9","priority":"action","category":"remark","kind":"added","summary":"new remark: +270 FT CELL TWR APPROX 2.1 NM SE OF RWY 31.","source":"APT_RMK","original":"+270 FT CELL TWR APPROX 2.1 NM SE OF RWY 31."},{"cycle":"2026-08-06","from_cycle":"2026-07-09","id":"2bbaf5236c70","priority":"fyi","category":"airport","kind":"changed","summary":"land area: 70 -> 132 acres","source":"APT_BASE","fields":[{"field":"ACREAGE","old":"70","new":"132"}]},{"cycle":"2026-08-06","from_cycle":"2026-07-09","id":"bc525d5bfc7e","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: +500 FT KILLDEER MTNS 5 NM NW OF ARPT.","source":"APT_RMK","original":"+500 FT KILLDEER MTNS 5 NM NW OF ARPT.","fields":[{"field":"REMARK","old":"+500' KILLDEER MTNS 5 MI NW OF ARPT.","new":"+500 FT KILLDEER MTNS 5 NM NW OF ARPT."}]},{"cycle":"2026-08-06","from_cycle":"2026-07-09","id":"a15ade0b6aa6","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact state: none -> ND; airport contact city: none -> KILLDEER; airport contact zip code: none -> 58640","source":"APT_CON","fields":[{"field":"STATE","old":"","new":"ND"},{"field":"TITLE_CITY","old":"","new":"KILLDEER"},{"field":"ZIP_CODE","old":"","new":"58640"}]}],"first_cycle":"2026-08-06","last_cycle":"2026-09-03"}