{"schema_version":1,"airport":"MDD","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"b781ff97e72c","priority":"action","category":"runway","kind":"changed","summary":"runway 16/34: length: 3977 -> 3839 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"3977","new":"3839"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"bf4ff3b01520","priority":"ifr","category":"chart","kind":"changed","summary":"minimums page (ALTERNATE MINIMUMS) changed","source":"D-TPP","chart":{"code":"MIN","name":"ALTERNATE MINIMUMS","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2607/SC3ALT.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"d71a8b182eeb","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 25 redrawn (still amdt 0B)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 25","amdt":"0B","pdf":"https://aeronav.faa.gov/d-tpp/2607/06158R25.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"5aeb8a6382c4","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 34 redrawn (still amdt 0B)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 34","amdt":"0B","pdf":"https://aeronav.faa.gov/d-tpp/2607/06158R34.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"8d20af01c2b7","priority":"ifr","category":"chart","kind":"removed","summary":"approach VOR RWY 25 removed","source":"D-TPP","chart":{"code":"IAP","name":"VOR RWY 25","amdt":"3E"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"95b12aecd9d6","priority":"ifr","category":"chart","kind":"removed","summary":"approach VOR-A removed","source":"D-TPP","chart":{"code":"IAP","name":"VOR-A","amdt":"2B"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"7abca37f25ed","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: This airport has been surveyed by the National Geodetic Survey.","source":"APT_RMK","original":"THIS AIRPORT HAS BEEN SURVEYED BY THE NATIONAL GEODETIC SURVEY."},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"065d587f2306","priority":"fyi","category":"runway","kind":"changed","summary":"runway 07: runway end elevation: 2803.4 -> 2805.1 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"2803.4","new":"2805.1"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"5d2627c2f0f5","priority":"fyi","category":"runway","kind":"changed","summary":"runway 16: runway end elevation: 2799.8 -> 2800.1 ft MSL; touchdown zone elevation: 2800.8 -> 2800.9 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"2799.8","new":"2800.1"},{"field":"TDZ_ELEV","old":"2800.8","new":"2800.9"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"789e4e84a73d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 25: runway end elevation: 2789.9 -> 2790 ft MSL; touchdown zone elevation: 2799.5 -> 2799.6 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"2789.9","new":"2790"},{"field":"TDZ_ELEV","old":"2799.5","new":"2799.6"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"f4960b043782","priority":"fyi","category":"runway","kind":"changed","summary":"runway 34: runway end elevation: 2796.6 -> 2796.5 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"2796.6","new":"2796.5"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"f2d938f07702","priority":"fyi","category":"remark","kind":"added","summary":"new remark: EXT 3001","source":"APT_RMK","original":"EXT 3001"},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"b907e53ef33b","priority":"action","category":"frequency","kind":"changed","summary":"frequency 133.1 now listed for MIDLAND RCAG (was MIDLAND/A RCAG); frequency now provided by MIDLAND (was MIDLAND/A); remark: APCH/DEP CTL SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND/A RCAG) WHEN MIDLAND APCH CTL (MAF) CLSD. -> APCH/DEP SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND RCAG) WHEN MIDLAND APCH CLSD.","source":"FRQ","fields":[{"field":"FACILITY","old":"MIDLAND/A","new":"MIDLAND"},{"field":"FAC_NAME","old":"MIDLAND/A","new":"MIDLAND"},{"field":"FREQ_USE","old":"MIDLAND/A RCAG","new":"MIDLAND RCAG"},{"field":"REMARK","old":"APCH/DEP CTL SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND/A RCAG) WHEN MIDLAND APCH CTL (MAF) CLSD.","new":"APCH/DEP SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND RCAG) WHEN MIDLAND APCH CLSD."}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"b0709d7b85d2","priority":"action","category":"frequency","kind":"changed","summary":"frequency 298.95 now listed for MIDLAND RCAG (was MIDLAND/A RCAG)","source":"FRQ","fields":[{"field":"FACILITY","old":"MIDLAND/A","new":"MIDLAND"},{"field":"FAC_NAME","old":"MIDLAND/A","new":"MIDLAND"},{"field":"FREQ_USE","old":"MIDLAND/A RCAG","new":"MIDLAND RCAG"},{"field":"REMARK","old":"APCH/DEP CTL SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND/A RCAG) WHEN MIDLAND APCH CTL (MAF) CLSD.","new":"APCH/DEP SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND RCAG) WHEN MIDLAND APCH CLSD."}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"5688eb3ccb04","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: APCH/DEP SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND RCAG) WHEN MIDLAND APCH CLSD.","source":"ATC_RMK","original":"APCH/DEP SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND RCAG) WHEN MIDLAND APCH CLSD.","fields":[{"field":"REMARK","old":"APCH/DEP CTL SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND/A RCAG) WHEN MIDLAND APCH CTL (MAF) CLSD.","new":"APCH/DEP SVC PRVDD BY FORT WORTH ARTCC (ZFW) ON FREQS 133.1/298.95 (MIDLAND RCAG) WHEN MIDLAND APCH CLSD."}]}],"first_cycle":"2025-08-07","last_cycle":"2026-07-09"}