{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"1C5","counts":{"action":0,"ifr":0,"fyi":8},"changes":[{"id":"f4a2ca9dbb1f","priority":"fyi","category":"airport","kind":"changed","summary":"airport owner address: 375 W BRIARCLIFF ROAD -> 375 W BRIARCLIFF RD; airport owner zip+4: none -> 3825","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"375 W BRIARCLIFF ROAD","new":"375 W BRIARCLIFF RD"},{"field":"ZIP_PLUS_FOUR","old":"","new":"3825"}]},{"id":"65d3b471cabe","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number: 630-378-0479 -> 630-226-8400; airport manager address: 130 S CLOW INTL PARKWAY -> 130 S CLOW INTL PKWY; airport manager zip+4: none -> 5507","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"130 S CLOW INTL PARKWAY","new":"130 S CLOW INTL PKWY"},{"field":"PHONE_NO","old":"630-378-0479","new":"630-226-8400"},{"field":"ZIP_PLUS_FOUR","old":"","new":"5507"}]},{"id":"4df365f84dba","priority":"fyi","category":"airport","kind":"changed","summary":"fuel: added automobile gasoline (MOGAS)","source":"APT_BASE","fields":[{"field":"FUEL_TYPES","old":"100LL,A","new":"100LL,A,MOGAS"}]},{"id":"791235577865","priority":"fyi","category":"remark","kind":"added","summary":"new runway 18 marking condition remark: Runway 18 markings faded.","source":"APT_RMK","original":"RWY 18 MARKINGS FADED"},{"id":"d4ac6c6d06e8","priority":"fyi","category":"remark","kind":"added","summary":"new runway 36 marking condition remark: runway 36 markings faded","source":"APT_RMK","original":"RWY 36 MARKINGS FADED"},{"id":"2ac046f48fe6","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Email address: BBCLOWAIRPORT@BOLINGBROOK.GOV","source":"APT_RMK","original":"EMAIL ADS: BBCLOWAIRPORT@BOLINGBROOK.GOV","fields":[{"field":"REMARK","old":"EMAIL ADDRESS: JOEDEPAULO@GMAIL.COM","new":"EMAIL ADS: BBCLOWAIRPORT@BOLINGBROOK.GOV"}]},{"id":"cd9319b3ee19","priority":"fyi","category":"runway","kind":"changed","summary":"runway 18: controlling obstacle: TREE 34 ft tall, 697 ft from threshold, 126 ft right of centerline -> TREE 33 ft tall, 700 ft from threshold, 40 ft right of centerline; obstacle clearance slope: 14:1 -> 15:1; marking condition: fair -> poor","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"126","new":"40"},{"field":"DIST_FROM_THR","old":"697","new":"700"},{"field":"OBSTN_CLNC_SLOPE","old":"14","new":"15"},{"field":"OBSTN_HGT","old":"34","new":"33"},{"field":"RWY_MARKING_COND","old":"FAIR","new":"POOR"}]},{"id":"82266e8d101b","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle: TREE 25 ft tall, 600 ft from threshold, 16 ft right of centerline -> TREE 38 ft tall, 873 ft from threshold, 100 ft right of centerline; obstacle clearance slope: 16:1 -> 17:1; marking condition: fair -> poor","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"16","new":"100"},{"field":"DIST_FROM_THR","old":"600","new":"873"},{"field":"OBSTN_CLNC_SLOPE","old":"16","new":"17"},{"field":"OBSTN_HGT","old":"25","new":"38"},{"field":"RWY_MARKING_COND","old":"FAIR","new":"POOR"}]}]}