{"schema_version":1,"airport":"91PN","entries":[{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"d7e70aa7b6bc","priority":"action","category":"tower","kind":"changed","summary":"approach/departure control now provided by MDT (was RDG); approach/departure control: READING (RDG) -> HARRISBURG (MDT); secondary approach/departure control: HARRISBURG (MDT, airport with ATCT) -> none","source":"ATC_BASE","fields":[{"field":"APCH_P_PROVIDER","old":"RDG","new":"MDT"},{"field":"APCH_S_PROVIDER","old":"MDT","new":""},{"field":"APCH_S_PROV_TYPE_CD","old":"A","new":""},{"field":"DEP_P_PROVIDER","old":"RDG","new":"MDT"},{"field":"DEP_S_PROVIDER","old":"MDT","new":""},{"field":"DEP_S_PROV_TYPE_CD","old":"A","new":""},{"field":"PRIMARY_APCH_RADIO_CALL","old":"READING","new":"HARRISBURG"},{"field":"PRIMARY_DEP_RADIO_CALL","old":"READING","new":"HARRISBURG"},{"field":"SECONDARY_APCH_RADIO_CALL","old":"HARRISBURG","new":""},{"field":"SECONDARY_DEP_RADIO_CALL","old":"HARRISBURG","new":""}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"25f005ee1f0e","priority":"action","category":"frequency","kind":"removed","summary":"frequency 125.15 (APCH/P DEP/P) removed","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"2854ecf3d2fc","priority":"action","category":"frequency","kind":"added","summary":"frequency 126.45 (APCH/P DEP/P) added","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"e6e8695b4801","priority":"action","category":"frequency","kind":"removed","summary":"frequency 257.9 (APCH/P DEP/P) removed","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"662933e9c684","priority":"action","category":"frequency","kind":"removed","summary":"frequency 273.525 (APCH/S DEP/S) removed","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"b7e9c7f08a11","priority":"action","category":"frequency","kind":"added","summary":"frequency 281.525 (APCH/P DEP/P) added","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"cc68d3ec80ce","priority":"fyi","category":"frequency","kind":"removed","summary":"frequency 124.1 (WOKVU DP) removed","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"6d2b42185485","priority":"fyi","category":"frequency","kind":"removed","summary":"frequency 125.15 (WOKVU DP) removed","source":"FRQ"},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"40196e30b94b","priority":"fyi","category":"frequency","kind":"removed","summary":"frequency 273.525 (WOKVU DP) removed","source":"FRQ"},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"73c4d7f3059f","priority":"fyi","category":"frequency","kind":"added","summary":"frequency 125.15 now also listed for APCH/P DEP/P","source":"FRQ"},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"25997054b6e3","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Schuylkill Medical Center -> Lehigh Valley Hospital Schuylkill","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"SCHUYLKILL MEDICAL CENTER","new":"LEHIGH VALLEY HOSPITAL SCHUYLKILL"}]}],"first_cycle":"2024-12-26","last_cycle":"2025-02-20"}