{"schema_version":1,"airport":"37T","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"e97d8165984a","priority":"fyi","category":"remark","kind":"added","summary":"new remark: REIL RWY 15 OTS","source":"APT_RMK","original":"REIL RWY 15 OTS"},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"920c65422925","priority":"fyi","category":"runway","kind":"changed","summary":"runway 33: controlling obstacle changed (now 35 ft tall, 930 ft from threshold, 180 ft right of centerline, clearance slope 20:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_CLNC_SLOPE","old":"22","new":"20"},{"field":"OBSTN_HGT","old":"33","new":"35"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"2c6a1d32ede8","priority":"action","category":"remark","kind":"changed","summary":"remark updated: ACTVT REIL RWY 15, 33; PAPI RWY 15, 33; MIRL RWY 15/33 - CTAF.","source":"APT_RMK","original":"ACTVT REIL RWY 15, 33; PAPI RWY 15, 33; MIRL RWY 15/33 - CTAF.","fields":[{"field":"REMARK","old":"ACTVT REIL, PAPI & MIRL RWY 15/33 - CTAF.","new":"ACTVT REIL RWY 15, 33; PAPI RWY 15, 33; MIRL RWY 15/33 - CTAF."}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"0e27166d0eb2","priority":"action","category":"frequency","kind":"changed","summary":"remark: ACTVT REIL, PAPI & MIRL RWY 15/33 - CTAF. -> ACTVT REIL RWY 15, 33; PAPI RWY 15, 33; MIRL RWY 15/33 - CTAF.; name changed: Calico Rock Municipal -> Calico Rock Muni","source":"FRQ","fields":[{"field":"FAC_NAME","old":"CALICO ROCK MUNICIPAL","new":"CALICO ROCK MUNI"},{"field":"REMARK","old":"ACTVT REIL, PAPI & MIRL RWY 15/33 - CTAF.","new":"ACTVT REIL RWY 15, 33; PAPI RWY 15, 33; MIRL RWY 15/33 - CTAF."},{"field":"SERVICED_FAC_NAME","old":"CALICO ROCK MUNICIPAL","new":"CALICO ROCK MUNI"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"a5f993d22f67","priority":"action","category":"runway","kind":"changed","summary":"runway 15/33: length: 3000 -> 3002 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"3000","new":"3002"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"a57fec7c292e","priority":"action","category":"runway","kind":"changed","summary":"runway 33: markings now in good condition; touchdown zone elevation: none -> 733 ft MSL; touchdown zone lights: none -> no","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"FAIR","new":"GOOD"},{"field":"TDZ_ELEV","old":"","new":"733"},{"field":"TDZ_LGT_AVBL_FLAG","old":"","new":"N"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"5fa7b59ea461","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 870-291-1200","source":"APT_CON","fields":[{"field":"PHONE_NO","old":"(870) 291-1200","new":"870-291-1200"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"c9b1ef49bd88","priority":"fyi","category":"airport","kind":"changed","summary":"direction from the city's business district: NW -> N","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"CALICO ROCK MUNICIPAL","new":"CALICO ROCK MUNI"},{"field":"DIRECTION_CODE","old":"NW","new":"N"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"40261f8c7e28","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: MKGS IN POOR COND.","source":"APT_RMK","original":"MKGS IN POOR COND."},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"8e383d770d15","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: RWY 33 VISUAL GLIDE SLOPE INDICATOR OTS INDEF.","source":"APT_RMK","original":"RWY 33 VISUAL GLIDE SLOPE INDICATOR OTS INDEF."},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"a6fd64456602","priority":"fyi","category":"runway","kind":"changed","summary":"runway 15: markings now in good condition; touchdown zone elevation: none -> 733 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"POOR","new":"GOOD"},{"field":"TDZ_ELEV","old":"","new":"733"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"17dc03434642","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Calico Rock-Izard County -> Calico Rock Municipal","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"CALICO ROCK-IZARD COUNTY","new":"CALICO ROCK MUNICIPAL"}]}],"first_cycle":"2024-11-28","last_cycle":"2026-07-09"}