{"schema_version":1,"airport":"5L0","entries":[{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"a71748c35b55","priority":"action","category":"frequency","kind":"changed","summary":"sector: HIGH -> LOW","source":"FRQ","fields":[{"field":"SECTORIZATION","old":"HIGH","new":"LOW"}]}],"first_cycle":"2026-03-19","last_cycle":"2026-03-19"}