{"schema_version":1,"airport":"27P","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"5e33dffe3866","priority":"fyi","category":"runway","kind":"changed","summary":"runway 18: controlling obstacle changed (now 56 ft tall, 803 ft from threshold, 110 ft left of centerline, clearance slope 14:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"54","new":"56"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"9aeab3523530","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle changed (now 27 ft tall, 514 ft from threshold, 25 ft right of centerline, clearance slope 19:1)","source":"APT_RWY_END","fields":[{"field":"DIST_FROM_THR","old":"505","new":"514"},{"field":"OBSTN_CLNC_SLOPE","old":"18","new":"19"}]},{"cycle":"2026-04-16","from_cycle":"2026-03-19","id":"869cb094b653","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 515-729-5119; airport contact address: 5285 NW 6TH DRIVE -> 1505 SANFORD AVENUE; airport contact city: DES MOINES -> MARSHALLTOWN; airport contact zip code: 50313 -> 50158","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"5285 NW 6TH DRIVE","new":"1505 SANFORD AVENUE"},{"field":"PHONE_NO","old":"(515) 249-8511","new":"515-729-5119"},{"field":"TITLE_CITY","old":"DES MOINES","new":"MARSHALLTOWN"},{"field":"ZIP_CODE","old":"50313","new":"50158"}]},{"cycle":"2026-04-16","from_cycle":"2026-03-19","id":"67d8ad835e40","priority":"fyi","category":"remark","kind":"added","summary":"new remark: OR 515-249-8511","source":"APT_RMK","original":"OR 515-249-8511"},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"2791449012bb","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":"2025-03-20","from_cycle":"2025-02-20","id":"1d88f47e9dc3","priority":"action","category":"remark","kind":"added","summary":"new remark: ARPT CLSD FM DEC 1 TO APR 1.","source":"APT_RMK","original":"ARPT CLSD FM DEC 1 TO APR 1."},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"1ad9ecac1eb9","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":"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":"e44b3d9bbbd1","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"}]}],"first_cycle":"2025-02-20","last_cycle":"2026-07-09"}