{"schema_version":1,"from_cycle":"2026-09-03","to_cycle":"2026-10-01","airport":"39CN","counts":{"action":4,"ifr":0,"fyi":0},"changes":[{"id":"2c47acf022d3","priority":"action","category":"tower","kind":"added","summary":"added (atc_base): facility type=NON-ATCT, facility id=39CN, facility name=ADVENTIST HEALTH UKIAH VALLEY, region code=AWP, primary apch radio call=OAKLAND ARTCC, apch p provider=ZOA","source":"ATC_BASE"},{"id":"db04470879a0","priority":"action","category":"frequency","kind":"added","summary":"new frequency 127.8 (UKIAH RCAG)","source":"FRQ"},{"id":"ff6f28d8144c","priority":"action","category":"frequency","kind":"added","summary":"new frequency 353.5 (UKIAH RCAG)","source":"FRQ"},{"id":"567a1c6d6d19","priority":"action","category":"remark","kind":"added","summary":"new tower/ATC remark: Approach and departure service provided by Oakland ARTCC (ZOA) on frequencies 127.8/353.5 (UKIAH RCAG).","source":"ATC_RMK","original":"APCH/DEP SVC PRVDD BY OAKLAND ARTCC (ZOA) ON FREQS 127.8/353.5 (UKIAH RCAG)."}]}