{"schema_version":1,"airport":"97OI","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"d1f04e8c57a7","priority":"fyi","category":"airport","kind":"changed","summary":"sectional chart: CINCINNATI -> DETROIT","source":"APT_BASE","fields":[{"field":"CHART_NAME","old":"CINCINNATI","new":"DETROIT"}]}],"first_cycle":"2026-10-01","last_cycle":"2026-10-01"}