{"schema_version":1,"airport":"54NH","entries":[{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"9c4a21b089a4","priority":"fyi","category":"runway","kind":"changed","summary":"runway H1: runway end elevation: none -> 690 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"","new":"690"}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"88fcd702e297","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: 156 FOLLETT RD -> 120 FOLLETT RD","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"156 FOLLETT RD","new":"120 FOLLETT RD"}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"f2370e40f05f","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: HELS, ULTRALIGHTS & STOL ACFT USE ONLY.","source":"APT_RMK","original":"HELS, ULTRALIGHTS & STOL ACFT USE ONLY.","fields":[{"field":"REMARK","old":"HELS & ULTRA-LGT ACFT USE ONLY.","new":"HELS, ULTRALIGHTS & STOL ACFT USE ONLY."}]}],"first_cycle":"2025-07-10","last_cycle":"2025-10-02"}