{"schema_version":1,"airport":"HLN","entries":[{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"4034397865b4","priority":"action","category":"remark","kind":"changed","summary":"remark updated: RWY 05/23 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. NO PART 121/PART 380 OPS EXC BTN TWY F & RWY 9/27.","source":"APT_RMK","original":"RWY 05/23 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. NO PART 121/PART 380 OPS EXC BTN TWY F & RWY 9/27.","fields":[{"field":"REMARK","old":"RWY 05/23 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. NO PART 121/PART 380 OPS EXC BTN TWY F & TWY C.","new":"RWY 05/23 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. NO PART 121/PART 380 OPS EXC BTN TWY F & RWY 9/27."}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"be6e6f73d47c","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/2607/00192AD.PDF"}},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"97bd3938bb48","priority":"action","category":"remark","kind":"added","summary":"new remark: SAID in use; operate transponders with altitude reporting mode and ADS-B (if equipped) enabled on all airport surfaces.","source":"ATC_RMK","original":"SAID IN USE. OPERATE TRANSPONDERS WITH ALTITUDE REPORTING MODE AND ADS-B (IF EQUIPPED) ENABLED ON ALL AIRPORT SURFACES."},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"f43704ac3c79","priority":"action","category":"remark","kind":"added","summary":"new remark: RWY 05/23 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. NO PART 121/PART 380 OPS EXC BTN TWY F & TWY C.","source":"APT_RMK","original":"RWY 05/23 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. NO PART 121/PART 380 OPS EXC BTN TWY F & TWY C."},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"1f5b63724f68","priority":"action","category":"remark","kind":"added","summary":"new remark: RWY 17/35 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. NO PART 121/PART 380 OPS EXC BTN TWY F & TWY C.","source":"APT_RMK","original":"RWY 17/35 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. NO PART 121/PART 380 OPS EXC BTN TWY F & TWY C."},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"d0da5ef8a2bb","priority":"action","category":"remark","kind":"removed","summary":"remark removed: RWY 05/23 & 17/35 EXC BTN TWY F & RWY 09/27 NOT AVBL TO ACR GTR THAN 30 PAX SEATS.","source":"APT_RMK","original":"RWY 05/23 & 17/35 EXC BTN TWY F & RWY 09/27 NOT AVBL TO ACR GTR THAN 30 PAX SEATS."},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"3ee42944321a","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -17C -> -16C","source":"APT_BASE","fields":[{"field":"CTA","old":"-17C","new":"-16C"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"7362d1145611","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Cold temperature airport; altitude correction required at or below -16C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -16C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -17C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -16C."}]},{"cycle":"2025-04-17","from_cycle":"2025-03-20","id":"15d4ac28a4a9","priority":"action","category":"weather","kind":"changed","summary":"AWOS/ASOS phone number changed to 406-290-3397","source":"AWOS","fields":[{"field":"PHONE_NO","old":"406-443-4317","new":"406-290-3397"}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"a8596b057449","priority":"fyi","category":"airport","kind":"changed","summary":"used for medical purposes: none -> yes","source":"APT_BASE","fields":[{"field":"MEDICAL_USE_FLAG","old":"","new":"Y"}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"cd41d924dd02","priority":"fyi","category":"remark","kind":"added","summary":"new remark: CUST - 406-449-5506.","source":"APT_RMK","original":"CUST - 406-449-5506."},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"6959f46009d3","priority":"fyi","category":"remark","kind":"added","summary":"new remark: LNDG FEE GTR THAN 10000 LB.","source":"APT_RMK","original":"LNDG FEE GTR THAN 10000 LB."},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"d6d025d64ea3","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: LANDING RIGHTS CUSTOMS AVAILABLE - CALL 406-449-5506.","source":"APT_RMK","original":"LANDING RIGHTS CUSTOMS AVAILABLE - CALL 406-449-5506."},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"b32fe6332a80","priority":"fyi","category":"remark","kind":"removed","summary":"remark removed: LNDG FEE FOR ALL COMMERCIAL ACFT & ALL ACFT OVER 10000 LBS.","source":"APT_RMK","original":"LNDG FEE FOR ALL COMMERCIAL ACFT & ALL ACFT OVER 10000 LBS."},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"d9a046fae4e8","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: +4 FT GND 0-200 FT FM RWY END 0-125 FT L & R.","source":"APT_RMK","original":"+4 FT GND 0-200 FT FM RWY END 0-125 FT L & R.","fields":[{"field":"REMARK","old":"+4' GND 0-200' FM RY END 0-125' L & R.","new":"+4 FT GND 0-200 FT FM RWY END 0-125 FT L & R."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"f656c96c7ea8","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: +6 FT GND 0-200 FT FM RWY END 350 FT R.","source":"APT_RMK","original":"+6 FT GND 0-200 FT FM RWY END 350 FT R.","fields":[{"field":"REMARK","old":"+6' GND 0-200' FM RY END 350' R.","new":"+6 FT GND 0-200 FT FM RWY END 350 FT R."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"8af9bcb92365","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ARFF PRVDD FOR SKED PART 121 ACR; OTRW PRIOR APVL RQRD - AMGR.","source":"APT_RMK","original":"ARFF PRVDD FOR SKED PART 121 ACR; OTRW PRIOR APVL RQRD - AMGR.","fields":[{"field":"REMARK","old":"ARFF COVERAGE PRVDD FOR SKED PART 121 ACRS ONLY EXCP WITH PRIOR APPROVAL - CALL 406-442-2821.","new":"ARFF PRVDD FOR SKED PART 121 ACR; OTRW PRIOR APVL RQRD - AMGR."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"8ba76b9533dc","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ARNG OPS 1400-0030Z++ MON-FRI, EXC HOL. CTN DURG TAX; AASF RAMP NOT STRESSED FOR LRG ACFT. RAMP ADVSY - 126.2, D406-324-5775, C406-324-5775. TSNT SVC NA AFT 2300Z++ MON-FRI; WKEND & HOL.","source":"APT_RMK","original":"ARNG OPS 1400-0030Z++ MON-FRI, EXC HOL. CTN DURG TAX; AASF RAMP NOT STRESSED FOR LRG ACFT. RAMP ADVSY - 126.2, D406-324-5775, C406-324-5775. TSNT SVC NA AFT 2300Z++ MON-FRI; WKEND & HOL.","fields":[{"field":"REMARK","old":"ARNG - OPR 1400-0030Z++ MON-FRI, EXC HOL.  EXERCISE CAUTION WHILE TAXIING, AASF RAMP NOT STRESSED FOR LARGE ACFT.  CTC FLT OPS FOR RAMP ADVSY 126.2, DSN 406-324-5775, C406-324-5775.  NO TRANS SVC SAT, SUN, HOL OR AFTER 2300Z++ MON-FRI.","new":"ARNG OPS 1400-0030Z++ MON-FRI, EXC HOL. CTN DURG TAX; AASF RAMP NOT STRESSED FOR LRG ACFT. RAMP ADVSY - 126.2, D406-324-5775, C406-324-5775. TSNT SVC NA AFT 2300Z++ MON-FRI; WKEND & HOL."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"bf57088362a8","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ARNG: FT HARRISON AAF WI CLASS D; PAJA - MT ARNG OPS C406 324-5775/76, D324-5775/76.","source":"APT_RMK","original":"ARNG: FT HARRISON AAF WI CLASS D; PAJA - MT ARNG OPS C406 324-5775/76, D324-5775/76.","fields":[{"field":"REMARK","old":"ARNG: FT HARRISON AAF (MT15) WITHIN CLASS D CONTACT MT ARNG OPS C406 324-5775/76 DSN 324-5775/76 FOR PARADROP OPERATIONS INFORMATION AND HOURS.","new":"ARNG: FT HARRISON AAF WI CLASS D; PAJA - MT ARNG OPS C406 324-5775/76, D324-5775/76."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"794f2e31d368","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: FUEL SVC- 406-442-2190.","source":"APT_RMK","original":"FUEL SVC- 406-442-2190.","fields":[{"field":"REMARK","old":"FUEL - A, J8 (C406-442-2190. SVC FEE $50.) (NC-80, 100, 100LL)","new":"FUEL SVC- 406-442-2190."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"1430b03c0e2a","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: RWY 05/23 & 17/35 EXC BTN TWY F & RWY 09/27 NOT AVBL TO ACR GTR THAN 30 PAX SEATS.","source":"APT_RMK","original":"RWY 05/23 & 17/35 EXC BTN TWY F & RWY 09/27 NOT AVBL TO ACR GTR THAN 30 PAX SEATS.","fields":[{"field":"REMARK","old":"RY 17/35 & RY 05/23 (EXCP BTN TWY F & RY 09/27) NOT AVBL FOR AIR CARRIER USE BY ACFT WITH GTR THAN 30 PSGR SEATS.","new":"RWY 05/23 & 17/35 EXC BTN TWY F & RWY 09/27 NOT AVBL TO ACR GTR THAN 30 PAX SEATS."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"0e5847b3a4ba","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: TWY A, B, & C BTN TWY A & RWY 35 NOT AVBL TO ACR GTR THAN 30 PAX SEATS.","source":"APT_RMK","original":"TWY A, B, & C BTN TWY A & RWY 35 NOT AVBL TO ACR GTR THAN 30 PAX SEATS.","fields":[{"field":"REMARK","old":"TWYS A, B, AND C (BTN TWY A & RY 35) NOT AVBL FOR AIR CARRIER USE BY ACFT WITH GTR THAN 30 PSGR SEATS.","new":"TWY A, B, & C BTN TWY A & RWY 35 NOT AVBL TO ACR GTR THAN 30 PAX SEATS."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"95eff397b268","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35 - CTAF.","source":"APT_RMK","original":"WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35 - CTAF.","fields":[{"field":"REMARK","old":"WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35; - CTAF.","new":"WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35 - CTAF."}]},{"cycle":"2025-03-20","from_cycle":"2025-02-20","id":"33636a95d97f","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35; - CTAF. -> WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35 - CTAF.","source":"FRQ","fields":[{"field":"REMARK","old":"WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35; - CTAF.","new":"WHEN ATCT CLSD ACTVT MALSR RWY 27; REIL RWY 09, 17 & 35; PAPI RWY 09 & 27; HIRL RWY 09/27; MIRL RWY 05/23 & 17/35 - CTAF."}]}],"first_cycle":"2025-03-20","last_cycle":"2026-07-09"}