{"schema_version":1,"airport":"GUC","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"5812d69675d3","priority":"fyi","category":"remark","kind":"changed","summary":"revised remark: Activate medium approach lighting system with sequenced flashers runway 06; PAPI runways 06 and 24 on CTAF; runway end identifier lights runway 24; high intensity runway lights 06/24 operate 0600 to 2230.","source":"APT_RMK","original":"ACTVT MALSF RWY 06; PAPI RWY 06 & 24 - CTAF.  REIL RWY 24; HIRL RWY 06/24 OPER 0600-2230.","fields":[{"field":"REMARK","old":"ACTVT MALSF RWY 07; PAPI RWY 07 & 25 - CTAF.  REIL RWY 25; HIRL RWY 07/25 OPER 0600-2230.","new":"ACTVT MALSF RWY 06; PAPI RWY 06 & 24 - CTAF.  REIL RWY 24; HIRL RWY 06/24 OPER 0600-2230."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"918d1e86a565","priority":"action","category":"remark","kind":"changed","summary":"remark updated: ACTVT MALSF RWY 07; PAPI RWY 07 & 25 - CTAF.  REIL RWY 25; HIRL RWY 07/25 OPER 0600-2230.","source":"APT_RMK","original":"ACTVT MALSF RWY 07; PAPI RWY 07 & 25 - CTAF.  REIL RWY 25; HIRL RWY 07/25 OPER 0600-2230.","fields":[{"field":"REMARK","old":"ACTVT MALSF RWY 06; PAPI RWY 06 & 24 - CTAF.  REIL RWY 24; HIRL RWY 06/24 OPER 0600-2230.","new":"ACTVT MALSF RWY 07; PAPI RWY 07 & 25 - CTAF.  REIL RWY 25; HIRL RWY 07/25 OPER 0600-2230."}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"465170413dbf","priority":"action","category":"frequency","kind":"changed","summary":"remark: ACTVT MALSF RWY 06; PAPI RWY 06 & 24 - CTAF.  REIL RWY 24; HIRL RWY 06/24 OPER 0600-2230. -> ACTVT MALSF RWY 07; PAPI RWY 07 & 25 - CTAF.  REIL RWY 25; HIRL RWY 07/25 OPER 0600-2230.","source":"FRQ","fields":[{"field":"REMARK","old":"ACTVT MALSF RWY 06; PAPI RWY 06 & 24 - CTAF.  REIL RWY 24; HIRL RWY 06/24 OPER 0600-2230.","new":"ACTVT MALSF RWY 07; PAPI RWY 07 & 25 - CTAF.  REIL RWY 25; HIRL RWY 07/25 OPER 0600-2230."}]},{"cycle":"2026-08-06","from_cycle":"2026-07-09","id":"dc0bb1752424","priority":"fyi","category":"navaid","kind":"changed","summary":"runway 06: remark: LOC UNUSABLE BYD 20 DEG LEFT OF COURSE. -> LOC UNUSBL BYD 20 DEG LEFT OF COURSE.","source":"ILS_RMK","fields":[{"field":"REMARK","old":"LOC UNUSABLE BYD 20 DEG LEFT OF COURSE.","new":"LOC UNUSBL BYD 20 DEG LEFT OF COURSE."}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"4f774ada2ed9","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -26C -> -25C","source":"APT_BASE","fields":[{"field":"CTA","old":"-26C","new":"-25C"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"2502c3544ff6","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -25C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -25C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -26C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -25C."}]}],"first_cycle":"2025-05-15","last_cycle":"2026-10-01"}