{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"SLK","counts":{"action":1,"ifr":6,"fyi":2},"changes":[{"id":"07be7f9439c6","priority":"action","category":"navaid","kind":"changed","summary":"SLK (Saranac Lake) navaid: DME -> VOR/DME; magnetic variation: none -> 14°; magnetic variation direction: none -> W","source":"NAV_BASE","fields":[{"field":"MAG_VARN","old":"","new":"14"},{"field":"MAG_VARN_HEMIS","old":"","new":"W"},{"field":"NAV_TYPE","old":"DME","new":"VOR/DME"}]},{"id":"b15c3aa1f50a","priority":"ifr","category":"remark","kind":"added","summary":"new navaid remark: VOR unusable 295-305 beyond 15NM below 9000 feet; 295-305 beyond 25NM.","source":"NAV_RMK","original":"VOR UNUSBL 295-305 BYD 15NM BLW 9000 FT; 295-305 BYD 25NM."},{"id":"9208ff061f5b","priority":"ifr","category":"remark","kind":"changed","summary":"revised navaid remark: Distance Measuring Equipment unusable below 8600 feet; 102-107 beyond 31 nautical miles below 11500 feet; 108-111 beyond 31 nautical miles; 112-129 beyond 31 nautical miles below 10500 feet; 310-315 beyond 36 nautical miles below 9300 feet.","source":"NAV_RMK","original":"DME UNUSBL BLW 8600 FT; 102-107 BYD 31 NM BLW 11500 FT; 108-111 BYD 31 NM; 112-129 BYD 31 NM BLW 10500 FT; 310-315 BYD 36 NM BLW 9300 FT.","fields":[{"field":"NAV_TYPE","old":"DME","new":"VOR/DME"},{"field":"REMARK","old":"DME UNUSBL BLW 8600 FT; 102T-107T BYD 31 NM BLW 11500 FT; 108T-111T BYD 31 NM; 112T-129T BYD 31 NM BLW 10500 FT; 310T-315T BYD 36 NM BLW 9300 FT.","new":"DME UNUSBL BLW 8600 FT; 102-107 BYD 31 NM BLW 11500 FT; 108-111 BYD 31 NM; 112-129 BYD 31 NM BLW 10500 FT; 310-315 BYD 36 NM BLW 9300 FT."}]},{"id":"2af2855b1fbe","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 23 redrawn (still amdt 12)","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 23","amdt":"12","pdf":"https://aeronav.faa.gov/d-tpp/2611/00806IL23.PDF"}},{"id":"3dd92c11698b","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 05 redrawn (still amdt 2)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 05","amdt":"2","pdf":"https://aeronav.faa.gov/d-tpp/2611/00806R5.PDF"}},{"id":"0cf465a2daa5","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 09 redrawn (still amdt 2)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 09","amdt":"2","pdf":"https://aeronav.faa.gov/d-tpp/2611/00806R9.PDF"}},{"id":"adbb17ba4a0c","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 23 redrawn (still amdt 2)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 23","amdt":"2","pdf":"https://aeronav.faa.gov/d-tpp/2611/00806R23.PDF"}},{"id":"38b9f77f565d","priority":"fyi","category":"frequency","kind":"changed","summary":"frequency 114.85/95Y use: SLK DME -> SLK VOR/DME; frequency 114.85/95Y served facility type: DME -> VOR/DME","source":"FRQ","fields":[{"field":"FREQ_USE","old":"SLK DME","new":"SLK VOR/DME"},{"field":"SERVICED_SITE_TYPE","old":"DME","new":"VOR/DME"}]},{"id":"ccd3883055b3","priority":"fyi","category":"chart","kind":"changed","summary":"airport diagram changed","source":"D-TPP","chart":{"code":"APD","name":"AIRPORT DIAGRAM","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2611/00806AD.PDF"}}]}