{"schema_version":1,"airport":"MIW","entries":[{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"a7ecab8d9c45","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":"da17528668e1","priority":"action","category":"frequency","kind":"added","summary":"frequency 118.9 (WATERLOO RCAG) added","source":"FRQ"},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"c2413e4c57c1","priority":"action","category":"frequency","kind":"added","summary":"frequency 251.15 (WATERLOO RCAG) added","source":"FRQ"},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"5982007911ab","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":"843599546df9","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":"bf2508968119","priority":"action","category":"remark","kind":"changed","summary":"remark updated: FOR CD CTC DES MOINES APCH ON FREQ 120.9. WHEN DES MOINES APCH CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","source":"APT_RMK","original":"FOR CD CTC DES MOINES APCH ON FREQ 120.9. WHEN DES MOINES APCH 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 ON FREQ 120.9. WHEN DES MOINES APCH CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588."}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"348165daee2c","priority":"action","category":"tower","kind":"changed","summary":"secondary approach/departure control: CHICAGO ARTCC (ZAU) -> MINNEAPOLIS ARTCC (ARTCC ZMP (MINNEAPOLIS, MN), special)","source":"ATC_BASE","fields":[{"field":"APCH_S_PROVIDER","old":"ZAU","new":"ARTCC ZMP (MINNEAPOLIS, MN)"},{"field":"APCH_S_PROV_TYPE_CD","old":"C","new":"S"},{"field":"DEP_S_PROVIDER","old":"ZAU","new":"ARTCC ZMP (MINNEAPOLIS, MN)"},{"field":"DEP_S_PROV_TYPE_CD","old":"C","new":"S"},{"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":"e858abd8efb4","priority":"action","category":"frequency","kind":"removed","summary":"frequency 127.05 (DES MOINES RCAG) removed","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"c242cd1d0251","priority":"action","category":"frequency","kind":"removed","summary":"frequency 282.35 (DES MOINES RCAG) removed","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"9a5fe25f6ea0","priority":"action","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 127.05/282.35 (DES MOINES RCAG) 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."}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"93d6024ae21e","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":"cdde4d018dd4","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":"2024-10-03","from_cycle":"2024-09-05","id":"7080a2efacb6","priority":"fyi","category":"runway","kind":"changed","summary":"runway 31: controlling obstacle changed (now , clearance slope 34:1); controlling obstacle: BRUSH -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":""},{"field":"CNTRLN_OFFSET","old":"212","new":""},{"field":"DIST_FROM_THR","old":"232","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"3","new":"34"},{"field":"OBSTN_HGT","old":"9","new":""},{"field":"OBSTN_TYPE","old":"BRUSH","new":""}]}],"first_cycle":"2024-10-03","last_cycle":"2025-10-02"}