{"schema_version":1,"airport":"MFI","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"056f5cae3d41","priority":"fyi","category":"airport","kind":"changed","summary":"airframe repair: major -> none; engine repair: minor -> none","source":"APT_BASE","fields":[{"field":"AIRFRAME_REPAIR_SER_CODE","old":"MAJOR","new":"NONE"},{"field":"PWR_PLANT_REPAIR_SER","old":"MINOR","new":"NONE"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"ba7ce9d18d30","priority":"fyi","category":"runway","kind":"changed","summary":"runway 05: controlling obstacle: TREES 35 ft tall, 500 ft from threshold, 200 ft left of centerline -> TREES 45 ft tall, 475 ft from threshold, 175 ft left of centerline; obstacle clearance slope: 8:1 -> 6:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"200","new":"175"},{"field":"DIST_FROM_THR","old":"500","new":"475"},{"field":"OBSTN_CLNC_SLOPE","old":"8","new":"6"},{"field":"OBSTN_HGT","old":"35","new":"45"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"920e30b7328c","priority":"fyi","category":"runway","kind":"changed","summary":"runway 16: controlling obstacle: TREES 120 ft tall, 2280 ft from threshold, 580 ft right of centerline -> TREES 104 ft tall, 1900 ft from threshold, 625 ft right of centerline; obstacle clearance slope: 17:1 -> 16:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"580","new":"625"},{"field":"DIST_FROM_THR","old":"2280","new":"1900"},{"field":"OBSTN_CLNC_SLOPE","old":"17","new":"16"},{"field":"OBSTN_HGT","old":"120","new":"104"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"ebd3db7d632c","priority":"fyi","category":"runway","kind":"changed","summary":"runway 34: controlling obstacle: TREES 15 ft tall, 230 ft from threshold, 480 ft left of centerline -> TREES 40 ft tall, 275 ft from threshold, 480 ft left of centerline; obstacle clearance slope: 2:1 -> 1:1","source":"APT_RWY_END","fields":[{"field":"DIST_FROM_THR","old":"230","new":"275"},{"field":"OBSTN_CLNC_SLOPE","old":"2","new":"1"},{"field":"OBSTN_HGT","old":"15","new":"40"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"bb67ead4ad9a","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.5 via the Marshfield outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"cbca7affde13","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: For clearance contact MINNEAPOLIS ARTCC at 651-463-5588.","source":"APT_RMK","original":"FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.","fields":[{"field":"REMARK","old":"FOR CD IF UNA TO CTC ON FSS FREQ, CTC MINNEAPOLIS ARTCC AT 651-463-5588.","new":"FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588."}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"4e658e824627","priority":"fyi","category":"runway","kind":"changed","summary":"runway 34: instrument landing system: simplified directional facility (SDF) -> none","source":"APT_RWY_END","fields":[{"field":"ILS_TYPE","old":"SDF","new":""}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"5b3841b98771","priority":"action","category":"remark","kind":"changed","summary":"remark updated: MIRL RWY 05/23 & RWY 16/34 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05; MIRL RWY 5/23 & RWY 16/34 - CTAF.","source":"APT_RMK","original":"MIRL RWY 05/23 & RWY 16/34 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05; MIRL RWY 5/23 & RWY 16/34 - CTAF.","fields":[{"field":"REMARK","old":"MIRL RWY 16/34 & RWY 05/23 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05 - CTAF.","new":"MIRL RWY 05/23 & RWY 16/34 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05; MIRL RWY 5/23 & RWY 16/34 - CTAF."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"1574130cadfe","priority":"action","category":"frequency","kind":"changed","summary":"remark: MIRL RWY 16/34 & RWY 05/23 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05 - CTAF. -> MIRL RWY 05/23 & RWY 16/34 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05; MIRL RWY 5/23 & RWY 16/34 - CTAF.","source":"FRQ","fields":[{"field":"REMARK","old":"MIRL RWY 16/34 & RWY 05/23 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05 - CTAF.","new":"MIRL RWY 05/23 & RWY 16/34 PRESET TO LOW SS-SR; TO INCR INTST AND ACTVT MALSR RWY 34; REIL RWY 16; VASI RWY 16 & 34; PAPI RWY 05; MIRL RWY 5/23 & RWY 16/34 - CTAF."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"7c99d5978da4","priority":"action","category":"runway","kind":"changed","summary":"runway 05/23: length: 3597 -> 3600 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"3597","new":"3600"}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"f17aae00a42f","priority":"action","category":"runway","kind":"changed","summary":"runway 16/34: length: 5002 -> 5003 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"5002","new":"5003"}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"be4695b5a6a5","priority":"fyi","category":"runway","kind":"changed","summary":"runway 16: threshold crossing height: 35 -> 33 ft AGL","source":"APT_RWY_END","fields":[{"field":"THR_CROSSING_HGT","old":"35","new":"33"}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"eabfe450c691","priority":"fyi","category":"runway","kind":"changed","summary":"runway 34: runway end elevation: 1255.4 -> 1255.2 ft MSL; threshold crossing height: 42 -> 41 ft AGL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1255.4","new":"1255.2"},{"field":"THR_CROSSING_HGT","old":"42","new":"41"}]}],"first_cycle":"2025-03-20","last_cycle":"2026-10-01"}