{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"O61","counts":{"action":0,"ifr":0,"fyi":1},"changes":[{"id":"b0419a67274e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 31: threshold crossing height: 18 ft AGL -> none; visual glide slope indicator: pulsating/steady burning VASI on left side of runway (PSIL) -> none; visual glide path angle: 6° -> none","source":"APT_RWY_END","fields":[{"field":"THR_CROSSING_HGT","old":"18","new":""},{"field":"VGSI_CODE","old":"PSIL","new":""},{"field":"VISUAL_GLIDE_PATH_ANGLE","old":"6","new":""}]}]}