{"schema_version":1,"airport":"39G","entries":[{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"ec8eeb20d669","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 810-434-4426; airport contact address: 8323 IMLAY CITY RD -> 8411 IMLAY CITY RD; name changed: Leland Engel -> Douglas Pulver; airport contact zip+4: 3611 -> 3610","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"8323 IMLAY CITY RD","new":"8411 IMLAY CITY RD"},{"field":"NAME","old":"LELAND ENGEL","new":"DOUGLAS PULVER"},{"field":"PHONE_NO","old":"810-324-2352","new":"810-434-4426"},{"field":"ZIP_PLUS_FOUR","old":"3611","new":"3610"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"a8a024548225","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: APCH RATIO 0:1 TO DTHR OVR +73 FT TREE, 0 FT DIST, 98 FT L.","source":"APT_RMK","original":"APCH RATIO 0:1 TO DTHR OVR +73 FT TREE, 0 FT DIST, 98 FT L.","fields":[{"field":"REMARK","old":"APCH RATIO 6:1 TO DTHR OVR +76 FT TREES, 595 FT DIST, 84 FT L.","new":"APCH RATIO 0:1 TO DTHR OVR +73 FT TREE, 0 FT DIST, 98 FT L."}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"0b99903eac48","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: CTLG OBSTN EXCEEDS A 45 DEG SLP. APCH RATIO 0:1 TO DTHR OVR +45 FT TREE, 0 FT DIST, 64 FT L.","source":"APT_RMK","original":"CTLG OBSTN EXCEEDS A 45 DEG SLP. APCH RATIO 0:1 TO DTHR OVR +45 FT TREE, 0 FT DIST, 64 FT L.","fields":[{"field":"REMARK","old":"APCH RATIO 20:1 TO DTHR.","new":"CTLG OBSTN EXCEEDS A 45 DEG SLP. APCH RATIO 0:1 TO DTHR OVR +45 FT TREE, 0 FT DIST, 64 FT L."}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"5e276b0a72a0","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Runway and displaced threshold marked with 3-foot yellow cones.","source":"APT_RMK","original":"RWY & DTHR MKD WITH 3 FT YELLOW CONES.","fields":[{"field":"REMARK","old":"RWY & DTHR MKD WITH YELLOW CONES.","new":"RWY & DTHR MKD WITH 3 FT YELLOW CONES."}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"fa974e82ee71","priority":"fyi","category":"runway","kind":"changed","summary":"runway 09: controlling obstacle changed (now 50 ft tall, 76 ft from threshold, 125 ft off centerline, clearance slope 1:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"L/R"},{"field":"CNTRLN_OFFSET","old":"35","new":"125"},{"field":"DIST_FROM_THR","old":"72","new":"76"},{"field":"OBSTN_HGT","old":"45","new":"50"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"7202645b5600","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: controlling obstacle changed (now 86 ft tall, 0 ft from threshold, 77 ft left of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"84","new":"77"},{"field":"OBSTN_CLNC_SLOPE","old":"1","new":"0"},{"field":"OBSTN_HGT","old":"76","new":"86"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"67d88b26fa93","priority":"fyi","category":"airport","kind":"changed","summary":"transient tie-down storage: none -> yes","source":"APT_BASE","fields":[{"field":"TRNS_STRG_TIE_FLAG","old":"","new":"Y"}]}],"first_cycle":"2025-09-04","last_cycle":"2025-09-04"}