{"schema_version":1,"airport":"41C","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"85a9b8a1e0cd","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number: 616-970-3472 -> 616-889-5971; airport manager: Anthony Winters -> Pete Steinbacher","source":"APT_CON","fields":[{"field":"NAME","old":"ANTHONY WINTERS","new":"PETE STEINBACHER"},{"field":"PHONE_NO","old":"616-970-3472","new":"616-889-5971"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"f68991a90d37","priority":"action","category":"runway","kind":"changed","summary":"runway 09: displaced threshold elevation: none -> 754 ft MSL; displaced threshold: 200 -> 260 ft; runway end elevation: 740 -> 752 ft MSL","source":"APT_RWY_END","fields":[{"field":"DISPLACED_THR_ELEV","old":"","new":"754"},{"field":"DISPLACED_THR_LEN","old":"200","new":"260"},{"field":"RWY_END_ELEV","old":"740","new":"752"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"150a3a1a92d7","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: runway end elevation: 740 -> 754 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"740","new":"754"}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"fef5847d545b","priority":"action","category":"runway","kind":"removed","summary":"runway 01/19 (2200x75 ft turf): removed","source":"APT_RWY","fields":[{"field":"RWY_ID","old":"01/19","new":""},{"field":"RWY_LEN","old":"2200","new":""},{"field":"RWY_WIDTH","old":"75","new":""},{"field":"SURFACE_TYPE_CODE","old":"TURF","new":""},{"field":"COND","old":"FAIR","new":""},{"field":"TREATMENT_CODE","old":"NONE","new":""}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"75a079a25bbf","priority":"fyi","category":"remark","kind":"added","summary":"new remark: ASST MGR: CLARENCE SLAUGHTER 616-813-8903.","source":"APT_RMK","original":"ASST MGR: CLARENCE SLAUGHTER 616-813-8903."},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"6d8619ccbe36","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: ALSO 10 FT CROPS.","source":"APT_RMK","original":"ALSO 10 FT CROPS."},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"db42b9eee88b","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: MKD BY MOWING & 2 FT TALL YELLOW PLASTIC PIPES.","source":"APT_RMK","original":"MKD BY MOWING & 2 FT TALL YELLOW PLASTIC PIPES."},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"c5423f7bfd05","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: ROUGH & UNEVEN; DIPS IN THE RWY.","source":"APT_RMK","original":"ROUGH & UNEVEN; DIPS IN THE RWY."},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"e5b340ac3ce1","priority":"fyi","category":"airport","kind":"removed","summary":"airport asst_mgr: Clarence Slaughter -> none listed","source":"APT_CON","fields":[{"field":"TITLE","old":"ASST_MGR","new":""},{"field":"NAME","old":"CLARENCE SLAUGHTER","new":""},{"field":"PHONE_NO","old":"616-813-8903","new":""}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"2e7b237a976d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 09: true alignment: none -> 90°","source":"APT_RWY_END","fields":[{"field":"TRUE_ALIGNMENT","old":"","new":"90"}]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"c0b162f6cac0","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: true alignment: none -> 270°","source":"APT_RWY_END","fields":[{"field":"TRUE_ALIGNMENT","old":"","new":"270"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"2365d55c8693","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: 315 ANDERSON DR -> 6041 GROEN CT; airport contact city: WAYLAND -> ALLENDALE; airport contact zip code: 49348 -> 49401; airport contact zip+4: 9170 -> 8372","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"315 ANDERSON DR","new":"6041 GROEN CT"},{"field":"TITLE_CITY","old":"WAYLAND","new":"ALLENDALE"},{"field":"ZIP_CODE","old":"49348","new":"49401"},{"field":"ZIP_PLUS_FOUR","old":"9170","new":"8372"}]}],"first_cycle":"2025-05-15","last_cycle":"2026-10-01"}