{"schema_version":1,"airport":"APN","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"9bf4e22f5c4d","priority":"ifr","category":"chart","kind":"changed","summary":"approach HI-ILS OR LOC RWY 01 changed","source":"D-TPP","chart":{"code":"IAP","name":"HI-ILS OR LOC RWY 01","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2609/00718HIL1.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"9488014480bf","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 01 redrawn (still amdt 9D)","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 01","amdt":"9D","pdf":"https://aeronav.faa.gov/d-tpp/2609/00718IL1.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"944fa1cfb1c1","priority":"ifr","category":"chart","kind":"changed","summary":"approach HI-VOR OR TACAN RWY 01 changed","source":"D-TPP","chart":{"code":"IAP","name":"HI-VOR OR TACAN RWY 01","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2609/00718HVT1.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"530903014fa8","priority":"ifr","category":"chart","kind":"changed","summary":"approach VOR RWY 19 redrawn (still amdt 16)","source":"D-TPP","chart":{"code":"IAP","name":"VOR RWY 19","amdt":"16","pdf":"https://aeronav.faa.gov/d-tpp/2609/00718V19.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"fef1cca3b986","priority":"ifr","category":"chart","kind":"changed","summary":"approach HI-TACAN RWY 19 changed","source":"D-TPP","chart":{"code":"IAP","name":"HI-TACAN RWY 19","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2609/00718HT19.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"513b08bfabb9","priority":"fyi","category":"navaid","kind":"changed","summary":"APN (Alpena) navaid: simultaneous voice: yes -> no; voice call: LANSING RADIO -> NONE","source":"NAV_BASE","fields":[{"field":"SIMUL_VOICE_FLAG","old":"Y","new":"N"},{"field":"VOICE_CALL","old":"LANSING RADIO","new":"NONE"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"e3cd67f2a81e","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: remark: DME UNUSBL 207-340 BYD 20 NM BLW 5000 FT; 341-351 BYD 20 NM BLW 2900 FT; 352-195 BYD 20 NM BLW 5000 FT. -> DME UNUSBL 105-110; 207-340 BYD 20 NM BLW 5000 FT; 341-351 BYD 20 NM BLW 2900 FT; 352-195 BYD 20 NM BLW 5000 FT.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"DME UNUSBL 207-340 BYD 20 NM BLW 5000 FT; 341-351 BYD 20 NM BLW 2900 FT; 352-195 BYD 20 NM BLW 5000 FT.","new":"DME UNUSBL 105-110; 207-340 BYD 20 NM BLW 5000 FT; 341-351 BYD 20 NM BLW 2900 FT; 352-195 BYD 20 NM BLW 5000 FT."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"a01d9dfa166a","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: remark: VOR UNUSBL 010-015 BYD 40 NM; 098-108 BLW 5000 FT; 100-105 BYD 40 NM; 115-120 BYD 40 NM; 125-135 BYD 40 NM; 141-151 BYD 17 NM BLW 5000 FT; 235-240 BYD 40 NM; 293-295 BYD 48 NM. -> VOR UNUSBL 010-015 BYD 40 NM; 098-115; 115-120 BYD 40 NM; 125-135 BYD 40 NM; 141-151 BYD 17 NM BLW 5000 FT; 235-240 BYD 40 NM; 293-295 BYD 48 NM.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"VOR UNUSBL 010-015 BYD 40 NM; 098-108 BLW 5000 FT; 100-105 BYD 40 NM; 115-120 BYD 40 NM; 125-135 BYD 40 NM; 141-151 BYD 17 NM BLW 5000 FT; 235-240 BYD 40 NM; 293-295 BYD 48 NM.","new":"VOR UNUSBL 010-015 BYD 40 NM; 098-115; 115-120 BYD 40 NM; 125-135 BYD 40 NM; 141-151 BYD 17 NM BLW 5000 FT; 235-240 BYD 40 NM; 293-295 BYD 48 NM."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"3289ab55b305","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.1R via the Alpena outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"6785dbdd26ca","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: APCH/DEP/CD SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD.","source":"ATC_RMK","original":"APCH/DEP/CD SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD.","fields":[{"field":"REMARK","old":"APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD.","new":"APCH/DEP/CD SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"ecd23478d7ab","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: FOR CD WHEN ATCT CLSD CTC MINNEAPOLIS ARTCC ON FREQ. IF UNA CTC MINNEAPOLIS ARTCC AT 651-463-5588.","source":"APT_RMK","original":"FOR CD WHEN ATCT CLSD CTC MINNEAPOLIS ARTCC ON FREQ. IF UNA 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 WHEN ATCT CLSD CTC MINNEAPOLIS ARTCC ON FREQ. IF UNA CTC MINNEAPOLIS ARTCC AT 651-463-5588."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"ace967c1b476","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD. -> APCH/DEP/CD SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD.","source":"FRQ","fields":[{"field":"REMARK","old":"APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD.","new":"APCH/DEP/CD SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 125.475/269.45 (ALPENA RCAG) WHEN ALPENA APCH CTL CLSD."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"2783759c740e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 01/19: pavement now in excellent condition","source":"APT_RWY","fields":[{"field":"COND","old":"GOOD","new":"EXCELLENT"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"eff74a0a0f4e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 07: markings now in fair condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"GOOD","new":"FAIR"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"31c948a309d5","priority":"fyi","category":"runway","kind":"changed","summary":"runway 25: markings now in fair condition","source":"APT_RWY_END","fields":[{"field":"RWY_MARKING_COND","old":"GOOD","new":"FAIR"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"6a23965cd992","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: remark: VOR UNUSBL 098-108 BLW 5000 FT; 141-151 BYD 17 NM BLW 5000 FT. -> VOR UNUSBL 010-015 BYD 40 NM; 098-108 BLW 5000 FT; 100-105 BYD 40 NM; 115-120 BYD 40 NM; 125-135 BYD 40 NM; 141-151 BYD 17 NM BLW 5000 FT; 235-240 BYD 40 NM; 293-295 BYD 48 NM.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"VOR UNUSBL 098-108 BLW 5000 FT; 141-151 BYD 17 NM BLW 5000 FT.","new":"VOR UNUSBL 010-015 BYD 40 NM; 098-108 BLW 5000 FT; 100-105 BYD 40 NM; 115-120 BYD 40 NM; 125-135 BYD 40 NM; 141-151 BYD 17 NM BLW 5000 FT; 235-240 BYD 40 NM; 293-295 BYD 48 NM."}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"78cc6861150c","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Steven Smigelski -> Mr. Edward Higgins","source":"APT_CON","fields":[{"field":"NAME","old":"STEVEN SMIGELSKI","new":"MR. EDWARD HIGGINS"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"25cf3521d4e0","priority":"action","category":"remark","kind":"changed","summary":"remark updated: RWY 07/25 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS.","source":"APT_RMK","original":"RWY 07/25 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS.","fields":[{"field":"REMARK","old":"CLSD TO SKEDD ACR OPS GTR THAN 9 PAX SEATS OR UNSKED ACR OPS GTR THAN 30 PAX SEATS.","new":"RWY 07/25 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS."}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"f5699c5e5cb9","priority":"action","category":"weather","kind":"changed","summary":"AWOS/ASOS phone number changed to 989-200-3256","source":"AWOS","fields":[{"field":"PHONE_NO","old":"989-356-1576","new":"989-200-3256"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"961018b9791f","priority":"fyi","category":"navaid","kind":"changed","summary":"runway 01: remark: ILS CLASSIFICATION CODE IE. -> ILS CLASSIFICATION CODE IB.","source":"ILS_RMK","fields":[{"field":"REMARK","old":"ILS CLASSIFICATION CODE IE.","new":"ILS CLASSIFICATION CODE IB."}]},{"cycle":"2025-01-23","from_cycle":"2024-12-26","id":"fb1aeffe75ff","priority":"action","category":"tower","kind":"changed","summary":"ATIS hours: 0800-1600 WKDAYS; EXCP HOLS -> 24","source":"ATC_ATIS","fields":[{"field":"ATIS_HRS","old":"0800-1600 WKDAYS; EXCP HOLS","new":"24"}]},{"cycle":"2025-01-23","from_cycle":"2024-12-26","id":"67ccc2e48b70","priority":"fyi","category":"runway","kind":"changed","summary":"runway 07: declared distances changed: takeoff run available (TORA) 5,031 ft -> 5,028 ft; takeoff distance available (TODA) 5,031 ft -> 5,028 ft; accelerate-stop distance available (ASDA) 5,031 ft -> 5,028 ft; landing distance available (LDA) 5,031 ft -> 5,028 ft","source":"APT_RWY_END","fields":[{"field":"ACLT_STOP_DIST_AVBL","old":"5031","new":"5028"},{"field":"LNDG_DIST_AVBL","old":"5031","new":"5028"},{"field":"TKOF_DIST_AVBL","old":"5031","new":"5028"},{"field":"TKOF_RUN_AVBL","old":"5031","new":"5028"}]},{"cycle":"2025-01-23","from_cycle":"2024-12-26","id":"0cd01089fdfa","priority":"fyi","category":"runway","kind":"changed","summary":"runway 25: declared distances changed: takeoff run available (TORA) 5,031 ft -> 5,028 ft; takeoff distance available (TODA) 5,031 ft -> 5,028 ft; accelerate-stop distance available (ASDA) 5,031 ft -> 5,028 ft; landing distance available (LDA) 5,031 ft -> 5,028 ft","source":"APT_RWY_END","fields":[{"field":"ACLT_STOP_DIST_AVBL","old":"5031","new":"5028"},{"field":"LNDG_DIST_AVBL","old":"5031","new":"5028"},{"field":"TKOF_DIST_AVBL","old":"5031","new":"5028"},{"field":"TKOF_RUN_AVBL","old":"5031","new":"5028"}]},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"d00641a1c239","priority":"action","category":"navaid","kind":"changed","summary":"APN (Alpena) navaid: status: OPERATIONAL IFR -> OPERATIONAL RESTRICTED","source":"NAV_BASE","fields":[{"field":"NAV_STATUS","old":"OPERATIONAL IFR","new":"OPERATIONAL RESTRICTED"}]},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"3da3e6bf1801","priority":"ifr","category":"navaid","kind":"added","summary":"new navaid remark: VOR UNUSBL 098-108 BLW 5000 FT; 141-151 BYD 17 NM BLW 5000 FT.","source":"NAV_RMK","original":"VOR UNUSBL 098-108 BLW 5000 FT; 141-151 BYD 17 NM BLW 5000 FT."},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"412ba3387512","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: remark: DME UNUSBL 260-280 BYD 30 NM BLW 4000 FT. -> DME UNUSBL 207-340 BYD 20 NM BLW 5000 FT; 341-351 BYD 20 NM BLW 2900 FT; 352-195 BYD 20 NM BLW 5000 FT.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"DME UNUSBL 260-280 BYD 30 NM BLW 4000 FT.","new":"DME UNUSBL 207-340 BYD 20 NM BLW 5000 FT; 341-351 BYD 20 NM BLW 2900 FT; 352-195 BYD 20 NM BLW 5000 FT."}]},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"872e0af7a0d2","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: remark: TACAN AZM UNUSBL 260-280 BYD 30 NM BLW 4000 FT. -> TACAN AZM UNUSBL 021-031 BLW 5000 FT; 098-108 BLW 5000 FT; 141-151 BYD 20 NM BLW 5000 FT; 155-172 BYD 20 NM BLW 5000 FT; 194-204; 262-272 BYD 35 NM BLW 5000 FT; 273-283.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"TACAN AZM UNUSBL 260-280 BYD 30 NM BLW 4000 FT.","new":"TACAN AZM UNUSBL 021-031 BLW 5000 FT; 098-108 BLW 5000 FT; 141-151 BYD 20 NM BLW 5000 FT; 155-172 BYD 20 NM BLW 5000 FT; 194-204; 262-272 BYD 35 NM BLW 5000 FT; 273-283."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"5d9cb1b32c9d","priority":"action","category":"navaid","kind":"changed","summary":"APN (Alpena) navaid: frequency changed: 108.8 -> 116.5; TACAN channel: 25X -> 112X; operator: F-FEDERAL AVIATION ADMIN -> F-FEDERAL AVIATION ADMIN.; owner: F-FEDERAL AVIATION ADMIN -> F-FEDERAL AVIATION ADMIN.","source":"NAV_BASE","fields":[{"field":"CHAN","old":"25X","new":"112X"},{"field":"FREQ","old":"108.8","new":"116.5"},{"field":"OPERATOR","old":"F-FEDERAL AVIATION ADMIN","new":"F-FEDERAL AVIATION ADMIN."},{"field":"OWNER","old":"F-FEDERAL AVIATION ADMIN","new":"F-FEDERAL AVIATION ADMIN."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"2f1d1c9fa009","priority":"action","category":"frequency","kind":"removed","summary":"frequency 108.8/25X (APN VORTAC) removed","source":"FRQ"},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"098bb0901949","priority":"action","category":"frequency","kind":"added","summary":"frequency 116.5/112X (APN VORTAC) added","source":"FRQ"},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"245b81787b0f","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: checkpoint description: 1.1 NM ON RUNUP FOR RY 01. -> 1.1 NM ON RUNUP FOR RWY 01.","source":"NAV_CKPT","fields":[{"field":"CHK_DESC","old":"1.1 NM ON RUNUP FOR RY 01.","new":"1.1 NM ON RUNUP FOR RWY 01."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"15d3b73004ad","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: remark: DME PORTION UNUSBL 260-280 BYD 30 NM BLO 4000'. -> DME UNUSBL 260-280 BYD 30 NM BLW 4000 FT.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"DME PORTION UNUSBL 260-280 BYD 30 NM BLO 4000'.","new":"DME UNUSBL 260-280 BYD 30 NM BLW 4000 FT."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"9c0243d320cd","priority":"fyi","category":"navaid","kind":"changed","summary":"APN navaid: remark: TACAN AZIMUTH UNUSBL 260-280 BYD 30 NM BLO 4000'. -> TACAN AZM UNUSBL 260-280 BYD 30 NM BLW 4000 FT.","source":"NAV_RMK","fields":[{"field":"REMARK","old":"TACAN AZIMUTH UNUSBL 260-280 BYD 30 NM BLO 4000'.","new":"TACAN AZM UNUSBL 260-280 BYD 30 NM BLW 4000 FT."}]}],"first_cycle":"2024-10-31","last_cycle":"2026-09-03"}