{"schema_version":1,"airport":"CCY","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"b88aae929adf","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.4 via the Charles City outlet no longer available","source":"FRQ"},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"44b191678d2d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 04: runway end elevation: 1122.7 -> 1121.7 ft MSL; touchdown zone elevation: 1124.8 -> 1125 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1122.7","new":"1121.7"},{"field":"TDZ_ELEV","old":"1124.8","new":"1125"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"90cdb3e42eca","priority":"fyi","category":"runway","kind":"changed","summary":"runway 12: runway end elevation: 1116.7 -> 1116.6 ft MSL; touchdown zone elevation: 1120.9 -> 1120.8 ft MSL; threshold crossing height: 26 -> 40 ft AGL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1116.7","new":"1116.6"},{"field":"TDZ_ELEV","old":"1120.9","new":"1120.8"},{"field":"THR_CROSSING_HGT","old":"26","new":"40"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"2b6e1e2d654d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 22: runway end elevation: 1124.8 -> 1123.3 ft MSL; touchdown zone elevation: 1124.8 -> 1125 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1124.8","new":"1123.3"},{"field":"TDZ_ELEV","old":"1124.8","new":"1125"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"6996e3410653","priority":"fyi","category":"runway","kind":"changed","summary":"runway 30: runway end elevation: 1116.6 -> 1116.5 ft MSL; touchdown zone elevation: 1120.9 -> 1120.8 ft MSL; threshold crossing height: 27 -> 40 ft AGL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1116.6","new":"1116.5"},{"field":"TDZ_ELEV","old":"1120.9","new":"1120.8"},{"field":"THR_CROSSING_HGT","old":"27","new":"40"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"50c43034ce0b","priority":"action","category":"tower","kind":"changed","summary":"approach/departure control now provided by DSM (was ALO); approach/departure control: WATERLOO (ALO) -> DES MOINES (DSM); secondary approach/departure control: ARTCC ZMP (MINNEAPOLIS, MN) (special) -> ZMP (ARTCC)","source":"ATC_BASE","fields":[{"field":"APCH_P_PROVIDER","old":"ALO","new":"DSM"},{"field":"APCH_S_PROVIDER","old":"ARTCC ZMP (MINNEAPOLIS, MN)","new":"ZMP"},{"field":"APCH_S_PROV_TYPE_CD","old":"S","new":"C"},{"field":"DEP_P_PROVIDER","old":"ALO","new":"DSM"},{"field":"DEP_S_PROVIDER","old":"ARTCC ZMP (MINNEAPOLIS, MN)","new":"ZMP"},{"field":"DEP_S_PROV_TYPE_CD","old":"S","new":"C"},{"field":"PRIMARY_APCH_RADIO_CALL","old":"WATERLOO","new":"DES MOINES"},{"field":"PRIMARY_DEP_RADIO_CALL","old":"WATERLOO","new":"DES MOINES"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"a1daf3abaeb1","priority":"action","category":"frequency","kind":"changed","summary":"frequency now provided by DSM (was ALO); approach control radio call: WATERLOO -> DES MOINES","source":"FRQ","fields":[{"field":"FACILITY","old":"ALO","new":"DSM"},{"field":"FAC_NAME","old":"WATERLOO RGNL","new":"DES MOINES INTL"},{"field":"PRIMARY_APPROACH_RADIO_CALL","old":"WATERLOO","new":"DES MOINES"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"3241a3961d6f","priority":"action","category":"remark","kind":"changed","summary":"remark updated: APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 118.9/251.15 (REMOTED FROM WATERLOO) WHEN DES MOINES APCH CTL CLSD.","source":"ATC_RMK","original":"APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 118.9/251.15 (REMOTED FROM WATERLOO) WHEN DES MOINES APCH CTL CLSD.","fields":[{"field":"REMARK","old":"APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQ 118.9 (REMOTED FROM WATERLOO) WHEN WATERLOO APCH CTL CLSD.","new":"APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 118.9/251.15 (REMOTED FROM WATERLOO) WHEN DES MOINES APCH CTL CLSD."}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"bd2a1d40e6b2","priority":"action","category":"remark","kind":"changed","summary":"remark updated: FOR CD CTC DES MOINES APCH AT 515-974-8016. WHEN DES MOINES APP CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","source":"APT_RMK","original":"FOR CD CTC DES MOINES APCH AT 515-974-8016. WHEN DES MOINES APP CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","fields":[{"field":"REMARK","old":"FOR CD CTC WATERLOO APCH 319-233-4835. WHEN WATERLOO APCH CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","new":"FOR CD CTC DES MOINES APCH AT 515-974-8016. WHEN DES MOINES APP CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588."}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"ac49087e8913","priority":"action","category":"runway","kind":"removed","summary":"runway 18/36 (1780x170 ft turf): removed","source":"APT_RWY","fields":[{"field":"RWY_ID","old":"18/36","new":""},{"field":"RWY_LEN","old":"1780","new":""},{"field":"RWY_WIDTH","old":"170","new":""},{"field":"SURFACE_TYPE_CODE","old":"TURF","new":""},{"field":"COND","old":"GOOD","new":""},{"field":"TREATMENT_CODE","old":"NONE","new":""}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"ee82a53019de","priority":"fyi","category":"frequency","kind":"added","summary":"frequency 118.9 now also listed for WATERLOO RCAG","source":"FRQ"},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"fe5ddc7e304e","priority":"fyi","category":"frequency","kind":"added","summary":"frequency 251.15 now also listed for WATERLOO RCAG","source":"FRQ"},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"acad98f8e31c","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: THLDS & EDGES MKD WITH YELLOW CONES.","source":"APT_RMK","original":"THLDS & EDGES MKD WITH YELLOW CONES."},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"94bd07c017f3","priority":"fyi","category":"runway","kind":"changed","summary":"runway 12: instrument landing system: localizer -> none","source":"APT_RWY_END","fields":[{"field":"ILS_TYPE","old":"LOCALIZER","new":""}]},{"cycle":"2025-04-17","from_cycle":"2025-03-20","id":"356d3e37366d","priority":"action","category":"navaid","kind":"removed","summary":"LOC RWY 12 (IYY): removed","source":"ILS_BASE","fields":[{"field":"RWY_END_ID","old":"12","new":""},{"field":"ILS_LOC_ID","old":"IYY","new":""},{"field":"SYSTEM_TYPE_CODE","old":"LC","new":""},{"field":"STATE_NAME","old":"IOWA","new":""},{"field":"REGION_CODE","old":"ACE","new":""},{"field":"RWY_LEN","old":"4000","new":""}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"55f00e7fc45f","priority":"action","category":"tower","kind":"changed","summary":"secondary approach control: CHICAGO ARTCC (APCH/S CALL IS CHICAGO ARTCC) -> MINNEAPOLIS ARTCC (ARTCC ZMP (MINNEAPOLIS, MN)); secondary departure control: CHICAGO ARTCC (DEP/S CALL IS CHICAGO ARTCC) -> MINNEAPOLIS ARTCC (ARTCC ZMP (MINNEAPOLIS, MN))","source":"ATC_BASE","fields":[{"field":"APCH_S_PROVIDER","old":"APCH/S CALL IS CHICAGO ARTCC","new":"ARTCC ZMP (MINNEAPOLIS, MN)"},{"field":"DEP_S_PROVIDER","old":"DEP/S CALL IS CHICAGO ARTCC","new":"ARTCC ZMP (MINNEAPOLIS, MN)"},{"field":"SECONDARY_APCH_RADIO_CALL","old":"CHICAGO ARTCC","new":"MINNEAPOLIS ARTCC"},{"field":"SECONDARY_DEP_RADIO_CALL","old":"CHICAGO ARTCC","new":"MINNEAPOLIS ARTCC"}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"ba2729d8b372","priority":"action","category":"remark","kind":"changed","summary":"remark updated: FOR CD CTC WATERLOO APCH 319-233-4835. WHEN WATERLOO APCH CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","source":"APT_RMK","original":"FOR CD CTC WATERLOO APCH 319-233-4835. WHEN WATERLOO APCH CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","fields":[{"field":"REMARK","old":"CLEARANCE DELIVERY PHONE: FOR CD CTC WATERLOO APCH 319-233-4835. WHEN WATERLOO APCH CLSD, FOR CD CTC CHICAGO ARTCC AT 630-906-8921.","new":"FOR CD CTC WATERLOO APCH 319-233-4835. WHEN WATERLOO APCH CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588."}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"c519d817ad26","priority":"fyi","category":"airport","kind":"changed","summary":"responsible ARTCC name: CHICAGO -> MINNEAPOLIS; ARTCC computer identifier: ZCG -> ZCP; responsible ARTCC: ZAU -> ZMP","source":"APT_BASE","fields":[{"field":"ARTCC_NAME","old":"CHICAGO","new":"MINNEAPOLIS"},{"field":"COMPUTER_ID","old":"ZCG","new":"ZCP"},{"field":"RESP_ARTCC_ID","old":"ZAU","new":"ZMP"}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"f74327abe156","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQ 118.9 (REMOTED FROM WATERLOO) WHEN WATERLOO APCH CTL CLSD.","source":"ATC_RMK","original":"APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQ 118.9 (REMOTED FROM WATERLOO) WHEN WATERLOO APCH CTL CLSD.","fields":[{"field":"REMARK","old":"APCH/DEP SVC PRVDD BY CHICAGO ARTCC ON FREQS 118.9 (REMOTED FROM WATERLOO) WHEN WATERLOO APCH CTL CLSD.","new":"APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQ 118.9 (REMOTED FROM WATERLOO) WHEN WATERLOO APCH CTL CLSD."}]}],"first_cycle":"2025-02-20","last_cycle":"2026-09-03"}