{"schema_version":1,"airport":"Z13","entries":[{"cycle":"2026-02-19","from_cycle":"2026-01-22","id":"f7fd2db15651","priority":"fyi","category":"runway","kind":"changed","summary":"runway 02: controlling obstacle changed (now , clearance slope 20:1); Part 77 runway category: utility runway with a visual approach (A(V)) -> utility runway with a nonprecision approach (A(NP)); controlling obstacle: BRUSH -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"100","new":""},{"field":"FAR_PART_77_CODE","old":"A(V)","new":"A(NP)"},{"field":"OBSTN_CLNC_SLOPE","old":"0","new":"20"},{"field":"OBSTN_HGT","old":"8","new":""},{"field":"OBSTN_TYPE","old":"BRUSH","new":""}]},{"cycle":"2026-02-19","from_cycle":"2026-01-22","id":"27692d30dbdd","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: controlling obstacle changed (now , clearance slope 20:1); Part 77 runway category: utility runway with a visual approach (A(V)) -> utility runway with a nonprecision approach (A(NP)); controlling obstacle: BRUSH -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"90","new":""},{"field":"FAR_PART_77_CODE","old":"A(V)","new":"A(NP)"},{"field":"OBSTN_CLNC_SLOPE","old":"0","new":"20"},{"field":"OBSTN_HGT","old":"6","new":""},{"field":"OBSTN_TYPE","old":"BRUSH","new":""}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"2278c7425283","priority":"action","category":"remark","kind":"changed","summary":"remark updated: ACTVT MIRL RWY 02/20; WINDSOCK - CTAF.","source":"APT_RMK","original":"ACTVT MIRL RWY 02/20; WINDSOCK - CTAF.","fields":[{"field":"REMARK","old":"ACTVT MIRL RWY 01/19; WINDSOCK - CTAF.","new":"ACTVT MIRL RWY 02/20; WINDSOCK - CTAF."}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"e9f723a33c8b","priority":"action","category":"frequency","kind":"changed","summary":"remark: ACTVT ROTG BCN - CTAF.; ACTVT MIRL RWY 01/19; WINDSOCK - CTAF. -> ACTVT ROTG BCN - CTAF.; ACTVT MIRL RWY 02/20; WINDSOCK - CTAF.","source":"FRQ","fields":[{"field":"REMARK","old":"ACTVT ROTG BCN - CTAF.; ACTVT MIRL RWY 01/19; WINDSOCK - CTAF.","new":"ACTVT ROTG BCN - CTAF.; ACTVT MIRL RWY 02/20; WINDSOCK - CTAF."}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"fdfc5c055228","priority":"action","category":"runway","kind":"changed","summary":"runway 01/19 renumbered to 02/20","source":"APT_RWY","fields":[{"field":"RWY_ID","old":"01/19","new":"02/20"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"139c90e3e39a","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 907-543-2498","source":"APT_CON","fields":[{"field":"PHONE_NO","old":"(907) 543-2498","new":"907-543-2498"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"b00d45fa9c4e","priority":"ifr","category":"tower","kind":"added","summary":"approach/departure control listed: ANCHORAGE ARTCC","source":"ATC_BASE","fields":[{"field":"FACILITY_TYPE","old":"","new":"NON-ATCT"},{"field":"FACILITY_ID","old":"","new":"Z13"},{"field":"ICAO_ID","old":"","new":"PFZK"},{"field":"FACILITY_NAME","old":"","new":"AKIACHAK"},{"field":"REGION_CODE","old":"","new":"AAL"},{"field":"PRIMARY_APCH_RADIO_CALL","old":"","new":"ANCHORAGE ARTCC"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"3d0082c283ee","priority":"action","category":"frequency","kind":"added","summary":"frequency 125.2 (BETHEL RCAG) added","source":"FRQ"},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"bc39e963737c","priority":"action","category":"frequency","kind":"added","summary":"frequency 372.0 (BETHEL RCAG) added","source":"FRQ"},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"75fadc7c5c60","priority":"action","category":"remark","kind":"added","summary":"new remark: APCH/DEP SVC PRVDD BY ANCHORAGE ARTCC (ZAN) ON FREQS 125.2/372.0 (BETHEL RCAG).","source":"ATC_RMK","original":"APCH/DEP SVC PRVDD BY ANCHORAGE ARTCC (ZAN) ON FREQS 125.2/372.0 (BETHEL RCAG)."}],"first_cycle":"2025-09-04","last_cycle":"2026-02-19"}