{"schema_version":1,"airport":"MRC","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"563c62d8db37","priority":"fyi","category":"frequency","kind":"added","summary":"frequencies now also listed for arrivals (STARs): 118.4 for JNING; 119.35 for PREDS; 360.7 for JNING; 372.0 for PREDS","source":"FRQ","details":["added: 118.4 JNING STAR","added: 119.35 PREDS STAR","added: 360.7 JNING STAR","added: 372.0 PREDS STAR"]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"b2090465f7cb","priority":"ifr","category":"procedure","kind":"changed","summary":"arrival/departure procedures new or updated: JNING1, PREDS1","source":"STAR/DP","procedures":{"updated":["JNING1","PREDS1"],"removed":[]}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"4e79e5be2ed9","priority":"ifr","category":"chart","kind":"added","summary":"arrival JNING ONE (RNAV) added","source":"D-TPP","chart":{"code":"STR","name":"JNING ONE (RNAV)","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2609/00895JNING.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"df9be88570e6","priority":"ifr","category":"chart","kind":"added","summary":"arrival PREDS ONE (RNAV) added","source":"D-TPP","chart":{"code":"STR","name":"PREDS ONE (RNAV)","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2609/00895PREDS.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"7445ff587c4b","priority":"action","category":"navaid","kind":"removed","summary":"SDF RWY 24 (MRC): removed","source":"ILS_BASE","fields":[{"field":"RWY_END_ID","old":"24","new":""},{"field":"ILS_LOC_ID","old":"MRC","new":""},{"field":"SYSTEM_TYPE_CODE","old":"SF","new":""},{"field":"STATE_NAME","old":"TENNESSEE","new":""},{"field":"REGION_CODE","old":"ASO","new":""},{"field":"RWY_LEN","old":"6000","new":""}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"33514903c715","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 24 amended (amdt 2)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 24","amdt":"2","pdf":"https://aeronav.faa.gov/d-tpp/2607/05706R24.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"cb04270dd096","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: instrument landing system: simplified directional facility (SDF) -> none","source":"APT_RWY_END","fields":[{"field":"ILS_TYPE","old":"SDF","new":""}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"d4ed52cf1cf1","priority":"action","category":"weather","kind":"changed","summary":"AWOS/ASOS phone number changed to 931-774-8325","source":"AWOS","fields":[{"field":"PHONE_NO","old":"931-379-0844","new":"931-774-8325"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"a76e68c110e2","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Paul Turner -> Ashley Schang","source":"APT_CON","fields":[{"field":"NAME","old":"PAUL TURNER","new":"ASHLEY SCHANG"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"dacb6ba60208","priority":"fyi","category":"runway","kind":"changed","summary":"runway 24: threshold crossing height: 42 -> 39 ft AGL","source":"APT_RWY_END","fields":[{"field":"THR_CROSSING_HGT","old":"42","new":"39"}]}],"first_cycle":"2024-11-28","last_cycle":"2026-10-01"}