{"schema_version":1,"airport":"41MI","entries":[{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"32abe3741265","priority":"fyi","category":"airport","kind":"added","summary":"airport attendance schedule: added UNATNDD","source":"APT_ATT"},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"516072fcddc8","priority":"action","category":"frequency","kind":"added","summary":"frequency 122.9 (CTAF) added","source":"FRQ"},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"1bb185b67146","priority":"fyi","category":"airport","kind":"changed","summary":"FAA district office: none -> DET; associated city: STUGIS -> STURGIS; direction from the city's business district: SE -> ESE; used for medical purposes: none -> yes","source":"APT_BASE","fields":[{"field":"ADO_CODE","old":"","new":"DET"},{"field":"CITY","old":"STUGIS","new":"STURGIS"},{"field":"DIRECTION_CODE","old":"SE","new":"ESE"},{"field":"MEDICAL_USE_FLAG","old":"","new":"Y"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"99c112e56a6a","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Toni Prior -> Tony Prior; airport contact zip+4: none -> 2391","source":"APT_CON","fields":[{"field":"CITY","old":"STUGIS","new":"STURGIS"},{"field":"NAME","old":"TONI PRIOR","new":"TONY PRIOR"},{"field":"ZIP_PLUS_FOUR","old":"","new":"2391"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"93326825b8c0","priority":"fyi","category":"remark","kind":"added","summary":"new remark: POLE WEST OF THE PAD.","source":"APT_RMK","original":"POLE WEST OF THE PAD."},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"47b345abf3aa","priority":"fyi","category":"remark","kind":"added","summary":"new remark: MEDICAL USE.","source":"APT_RMK","original":"MEDICAL USE."},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"f4fc251b6aac","priority":"fyi","category":"runway","kind":"changed","summary":"runway H1: controlling obstacle changed (now 30 ft tall, 127 ft from threshold, 13 ft left of centerline, clearance slope 4:1); associated city: STUGIS -> STURGIS; Part 77 runway category: none -> utility runway with a visual approach (A(V)); controlling obstacle: none -> POLE","source":"APT_RWY_END","fields":[{"field":"CITY","old":"STUGIS","new":"STURGIS"},{"field":"CNTRLN_DIR_CODE","old":"","new":"L"},{"field":"CNTRLN_OFFSET","old":"","new":"13"},{"field":"DIST_FROM_THR","old":"","new":"127"},{"field":"FAR_PART_77_CODE","old":"","new":"A(V)"},{"field":"OBSTN_CLNC_SLOPE","old":"","new":"4"},{"field":"OBSTN_HGT","old":"","new":"30"},{"field":"OBSTN_TYPE","old":"","new":"POLE"}]}],"first_cycle":"2026-05-14","last_cycle":"2026-05-14"}