{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"T58","counts":{"action":0,"ifr":0,"fyi":1},"changes":[{"id":"abcfcf8ec2cd","priority":"fyi","category":"navaid","kind":"changed","summary":"DQD (Denton) navaid, 7 NM from the field: common system usage: no -> yes","source":"NAV_BASE","fields":[{"field":"NAS_USE_FLAG","old":"N","new":"Y"}]}]}