{"schema_version":1,"airport":"01CN","entries":[{"cycle":"2026-04-16","from_cycle":"2026-03-19","id":"71dfa01e974f","priority":"fyi","category":"airport","kind":"changed","summary":"land area: 0 acres -> none","source":"APT_BASE","fields":[{"field":"ACREAGE","old":"0","new":""}]}],"first_cycle":"2026-04-16","last_cycle":"2026-04-16"}