{"schema_version":1,"airport":"AUO","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"74d85446af52","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 36 redrawn (still amdt 4A)","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 36","amdt":"4A","pdf":"https://aeronav.faa.gov/d-tpp/2609/05127IL36.PDF"}},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"e153ca20321f","priority":"fyi","category":"runway","kind":"changed","summary":"runway 11: controlling obstacle changed (now 22 ft tall, 372 ft from threshold, 192 ft left of centerline, clearance slope 7:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"193","new":"192"},{"field":"DIST_FROM_THR","old":"379","new":"372"},{"field":"OBSTN_CLNC_SLOPE","old":"8","new":"7"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"cd2326083e5e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 18: controlling obstacle changed (now 43 ft tall, 1204 ft from threshold, 367 ft right of centerline, clearance slope 23:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"415","new":"367"},{"field":"DIST_FROM_THR","old":"1213","new":"1204"},{"field":"OBSTN_CLNC_SLOPE","old":"24","new":"23"},{"field":"OBSTN_HGT","old":"41","new":"43"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"60a74e7a51e6","priority":"fyi","category":"runway","kind":"changed","summary":"runway 29: controlling obstacle changed (now 63 ft tall, 954 ft from threshold, 379 ft right of centerline, clearance slope 11:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"373","new":"379"},{"field":"DIST_FROM_THR","old":"1014","new":"954"},{"field":"OBSTN_CLNC_SLOPE","old":"13","new":"11"},{"field":"OBSTN_HGT","old":"62","new":"63"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"670401390faf","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle changed (now 8 ft tall, 212 ft from threshold, 300 ft right of centerline, clearance slope 1:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"335","new":"300"},{"field":"DIST_FROM_THR","old":"524","new":"212"},{"field":"OBSTN_CLNC_SLOPE","old":"36","new":"1"},{"field":"OBSTN_HGT","old":"9","new":"8"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"7bd998b353f5","priority":"action","category":"airport","kind":"changed","summary":"airport attendance hours changed: 0700-1900 -> 0700-2100","source":"APT_ATT","fields":[{"field":"HOUR","old":"0700-1900","new":"0700-2100"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"bb625dde174b","priority":"fyi","category":"frequency","kind":"added","summary":"frequency 121.625 now also listed for CD/P","source":"FRQ"},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"5551fa7a7918","priority":"fyi","category":"frequency","kind":"changed","summary":"frequency 123.0 no longer listed for CTAF","source":"FRQ","fields":[{"field":"FREQ_USE","old":"CTAF","new":""}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"95d3f3095a93","priority":"fyi","category":"frequency","kind":"added","summary":"frequency 123.875 now also listed for CTAF","source":"FRQ"},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"4f85f685c8c8","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: WHEN ATCT CLSD, ACTVT MALSF RWY 36; PAPI RWY 29 & 36; MIRL RWY 11/29; HIRL RWY 18/36 - CTAF.","source":"APT_RMK","original":"WHEN ATCT CLSD, ACTVT MALSF RWY 36; PAPI RWY 29 & 36; MIRL RWY 11/29; HIRL RWY 18/36 - CTAF.","fields":[{"field":"REMARK","old":"ACTVT MALSF RWY 36; PAPI RWY 29 & 36; MIRL RWY 11/29; HIRL RWY 18/36 - CTAF","new":"WHEN ATCT CLSD, ACTVT MALSF RWY 36; PAPI RWY 29 & 36; MIRL RWY 11/29; HIRL RWY 18/36 - CTAF."}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"dea2ce901f3b","priority":"fyi","category":"runway","kind":"changed","summary":"runway 11/29: pavement now in good condition","source":"APT_RWY","fields":[{"field":"COND","old":"FAIR","new":"GOOD"}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"a9bed85f4828","priority":"fyi","category":"runway","kind":"changed","summary":"runway 11: markings now in good condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"POOR","new":"GOOD"}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"1f46883d98a1","priority":"fyi","category":"runway","kind":"changed","summary":"runway 29: markings now in good condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"POOR","new":"GOOD"}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"3e616a7416f1","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: MKINGS SVRLY FADED.","source":"APT_RMK","original":"MKINGS SVRLY FADED."},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"d7144002c78f","priority":"fyi","category":"runway","kind":"changed","summary":"runway 11: controlling obstacle changed (now 22 ft tall, 379 ft from threshold, 193 ft left of centerline, clearance slope 8:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"L"},{"field":"CNTRLN_OFFSET","old":"323","new":"193"},{"field":"DIST_FROM_THR","old":"673","new":"379"},{"field":"OBSTN_HGT","old":"57","new":"22"}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"f016dd039034","priority":"fyi","category":"runway","kind":"changed","summary":"runway 18: controlling obstacle changed (now 41 ft tall, 1213 ft from threshold, 415 ft right of centerline, clearance slope 24:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"232","new":"415"},{"field":"DIST_FROM_THR","old":"1954","new":"1213"},{"field":"OBSTN_CLNC_SLOPE","old":"25","new":"24"},{"field":"OBSTN_HGT","old":"69","new":"41"}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"7aeefbf68cea","priority":"fyi","category":"runway","kind":"changed","summary":"runway 29: controlling obstacle changed (now 62 ft tall, 1014 ft from threshold, 373 ft right of centerline, clearance slope 13:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"18","new":"373"},{"field":"DIST_FROM_THR","old":"805","new":"1014"},{"field":"OBSTN_CLNC_SLOPE","old":"18","new":"13"},{"field":"OBSTN_HGT","old":"32","new":"62"}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"811610ff533d","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle changed (now 9 ft tall, 524 ft from threshold, 335 ft right of centerline, clearance slope 36:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"48","new":"335"},{"field":"DIST_FROM_THR","old":"1887","new":"524"},{"field":"OBSTN_CLNC_SLOPE","old":"32","new":"36"},{"field":"OBSTN_HGT","old":"52","new":"9"}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"18b1d4e0b208","priority":"action","category":"airspace","kind":"added","summary":"new class D airspace: CLASS D SVC 0700-2100 MON-FRI; 0800-1700 SAT & SUN; OTHER TIMES CLASS G","source":"CLS_ARSP","fields":[{"field":"CLASS_D_AIRSPACE","old":"","new":"Y"},{"field":"AIRSPACE_HRS","old":"","new":"CLASS D SVC 0700-2100 MON-FRI; 0800-1700 SAT & SUN; OTHER TIMES CLASS G"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"dcc483dd14ba","priority":"action","category":"frequency","kind":"changed","summary":"facility type: no air traffic control tower (NON-ATCT) -> air traffic control tower (ATCT)","source":"FRQ","fields":[{"field":"FACILITY_TYPE","old":"NON-ATCT","new":"ATCT"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"b434af3b885c","priority":"action","category":"frequency","kind":"added","summary":"frequency 121.625 (GND/P) added","source":"FRQ"},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"4dd11dd6beab","priority":"action","category":"frequency","kind":"added","summary":"frequency 123.875 (LCL/P) added","source":"FRQ"},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"1752f457429b","priority":"action","category":"remark","kind":"removed","summary":"remark removed: Clearance delivery provided by Atlanta large TRACON 118.7 (0515-2200) other times Atlanta ARTCC 120.45/298.850 (Columbus RCAG).","source":"ATC_RMK","original":"CLNC DEL PRVDD BY ATLANTA LARGE TRACON 118.7 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG)."},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"ce0db66d8123","priority":"action","category":"remark","kind":"changed","summary":"remark updated: APCH/DEP SVC PRVDD BY ATLANTA LARGE TRACON 125.5 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG).","source":"ATC_RMK","original":"APCH/DEP SVC PRVDD BY ATLANTA LARGE TRACON 125.5 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG).","fields":[{"field":"FACILITY_TYPE","old":"NON-ATCT","new":"ATCT"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"aa6ee2a8b32d","priority":"action","category":"frequency","kind":"changed","summary":"remark: APCH/DEP SVC PRVDD BY ATLANTA LARGE TRACON 125.5 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG).; CLNC DEL PRVDD BY ATLANTA LARGE TRACON 118.7 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG). -> APCH/DEP SVC PRVDD BY ATLANTA LARGE TRACON 125.5 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG).; radio call: none -> AUBURN","source":"FRQ","fields":[{"field":"REMARK","old":"APCH/DEP SVC PRVDD BY ATLANTA LARGE TRACON 125.5 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG).; CLNC DEL PRVDD BY ATLANTA LARGE TRACON 118.7 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG).","new":"APCH/DEP SVC PRVDD BY ATLANTA LARGE TRACON 125.5 (0515-2200) OTHER TIMES ATLANTA ARTCC 120.45/298.850 (COLUMBUS RCAG)."},{"field":"TOWER_OR_COMM_CALL","old":"","new":"AUBURN"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"16d2a16a226e","priority":"action","category":"frequency","kind":"changed","summary":"sector: none -> WHEN AUO TWR CLSD","source":"FRQ","fields":[{"field":"SECTORIZATION","old":"","new":"WHEN AUO TWR CLSD"},{"field":"TOWER_OR_COMM_CALL","old":"","new":"AUBURN"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"80e536ac989d","priority":"action","category":"tower","kind":"changed","summary":"tower hours changed: none listed -> 0700-2100 MON-FRI; 0800-1700 SAT & SUN local; tower radio call: none -> AUBURN; tower operator: none -> non-federal control tower (NFCT)","source":"ATC_BASE","fields":[{"field":"FACILITY_TYPE","old":"NON-ATCT","new":"ATCT"},{"field":"TWR_CALL","old":"","new":"AUBURN"},{"field":"TWR_HRS","old":"","new":"0700-2100 MON-FRI; 0800-1700 SAT & SUN"},{"field":"TWR_OPERATOR_CODE","old":"","new":"NFCT"}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"2c4670b8d4dd","priority":"fyi","category":"airport","kind":"changed","summary":"tower type: no air traffic control tower (NON-ATCT) -> air traffic control tower (ATCT)","source":"APT_BASE","fields":[{"field":"TWR_TYPE_CODE","old":"NON-ATCT","new":"ATCT"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"e82d6b21ac44","priority":"fyi","category":"airport","kind":"changed","summary":"airframe repair: minor -> none; bulk oxygen: high/low -> none; engine repair: minor -> none","source":"APT_BASE","fields":[{"field":"AIRFRAME_REPAIR_SER_CODE","old":"MINOR","new":"NONE"},{"field":"BULK_OXY_TYPE","old":"HIGH/LOW","new":"NONE"},{"field":"PWR_PLANT_REPAIR_SER","old":"MINOR","new":"NONE"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"e5f943db979a","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: SAWRS WX AVBL ON REQ.","source":"APT_RMK","original":"SAWRS WX AVBL ON REQ."},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"f15becd32cc3","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: TMPRY ATCT BY NOTAM FOR SPL EVENTS.","source":"APT_RMK","original":"TMPRY ATCT BY NOTAM FOR SPL EVENTS."}],"first_cycle":"2024-09-05","last_cycle":"2026-09-03"}