{"schema_version":1,"airport":"MDT","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"0317f7d33dbe","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route CLT -> MDT is now: CLT KRITR9 FILDS ILLSA COURG BAMMY T299 HAR MDT"]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"60427fdb14e0","priority":"ifr","category":"chart","kind":"changed","summary":"minimums page (ALTERNATE MINIMUMS) changed","source":"D-TPP","chart":{"code":"MIN","name":"ALTERNATE MINIMUMS","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2609/NE4ALT.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"64cec9af4883","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 13 redrawn (still amdt 3A)","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 13","amdt":"3A","pdf":"https://aeronav.faa.gov/d-tpp/2609/00188IL13.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"367bbb6214ee","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS OR LOC RWY 31 amended (amdt 1G): RVR 5000 now 5500 at minimum 920","source":"D-TPP","chart":{"code":"IAP","name":"ILS OR LOC RWY 31","amdt":"1G","pdf":"https://aeronav.faa.gov/d-tpp/2609/00188IL31.PDF"},"details":["minimums on the plate: RVR 5000 -> 5500 at minimum 920"]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"5210c5e47fdd","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS RWY 13 (SA CAT I) redrawn (still amdt 3A)","source":"D-TPP","chart":{"code":"IAP","name":"ILS RWY 13 (SA CAT I)","amdt":"3A","pdf":"https://aeronav.faa.gov/d-tpp/2609/00188I13SAC1.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"dac4b18334f9","priority":"ifr","category":"chart","kind":"changed","summary":"approach ILS RWY 13 (CAT II - III) redrawn (still amdt 3A)","source":"D-TPP","chart":{"code":"IAP","name":"ILS RWY 13 (CAT II - III)","amdt":"3A","pdf":"https://aeronav.faa.gov/d-tpp/2609/00188I13C2_3.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"b9ffd946d234","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 13 redrawn (still amdt 1B)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 13","amdt":"1B","pdf":"https://aeronav.faa.gov/d-tpp/2609/00188R13.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"a069b1a10307","priority":"ifr","category":"chart","kind":"changed","summary":"approach RNAV (GPS) RWY 31 amended (amdt 1C)","source":"D-TPP","chart":{"code":"IAP","name":"RNAV (GPS) RWY 31","amdt":"1C","pdf":"https://aeronav.faa.gov/d-tpp/2609/00188R31.PDF"}},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"fdf2858e245b","priority":"ifr","category":"chart","kind":"changed","summary":"approach VOR RWY 31 redrawn (still amdt 2D)","source":"D-TPP","chart":{"code":"IAP","name":"VOR RWY 31","amdt":"2D","pdf":"https://aeronav.faa.gov/d-tpp/2609/00188V31.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"7f26dae83e6c","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route CLT -> MDT is now: CLT KRITR8 FILDS ILLSA COURG BAMMY T299 HAR MDT"]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"e416ef1a59e4","priority":"fyi","category":"navaid","kind":"changed","summary":"MDT (Harrisburg) navaid: voice call: CONTINUOUS DOTS -> FOUR DOTS PER SECOND","source":"NAV_BASE","fields":[{"field":"VOICE_CALL","old":"CONTINUOUS DOTS","new":"FOUR DOTS PER SECOND"}]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"3a4de67b9499","priority":"fyi","category":"runway","kind":"changed","summary":"runway 31: controlling obstacle changed (now 79 ft tall, 2485 ft from threshold, 712 ft right of centerline, clearance slope 29:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"78","new":"79"}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"c65a10272fa4","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route CLT -> MDT is now: CLT KRITR7 FILDS ILLSA COURG BAMMY T299 HAR MDT"]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"482a379f0028","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route MKE -> MDT is now: MKE OBK SAMPL ADIME GERBS Q186 SPYDY EWC HAR MDT"]},{"cycle":"2026-01-22","from_cycle":"2025-12-25","id":"eb31b857ae55","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed, 1 removed","source":"PFR","details":["preferred IFR route DCA -> MDT removed","preferred IFR route MDT -> CVG is now: MDT MRB J6 COLNS GAVNN8 CVG"]},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"1c08cc3f6818","priority":"fyi","category":"remark","kind":"added","summary":"new remark: RWY 13: PIR AND MIL ASSAULT LDG ZONE MKGS.","source":"APT_RMK","original":"RWY 13: PIR AND MIL ASSAULT LDG ZONE MKGS."},{"cycle":"2025-12-25","from_cycle":"2025-11-27","id":"f65218ba64cd","priority":"fyi","category":"remark","kind":"added","summary":"new remark: RWY 31: PIR AND MIL ASSAULT LDG ZONE MKGS.","source":"APT_RMK","original":"RWY 31: PIR AND MIL ASSAULT LDG ZONE MKGS."},{"cycle":"2025-11-27","from_cycle":"2025-10-30","id":"e9df819b0e90","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route BTV -> MDT is now: BTV DENYU ALB DNY LAAYK T295 DUMMR HWANG MDT"]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"17920ed5d959","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route RDU -> MDT is now: RDU OXFRD5 CARML COURG BAMMY T299 HAR MDT"]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"eadf9e48b6d2","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":"46c3e606b417","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":"2025-06-12","from_cycle":"2025-05-15","id":"0a4a7f84ba2d","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: RWY 31 APCH SLP 36:1 TO DTHR.","source":"APT_RMK","original":"RWY 31 APCH SLP 36:1 TO DTHR.","fields":[{"field":"REMARK","old":"APCH SLOPE 41:1 TO DTHR.","new":"RWY 31 APCH SLP 36:1 TO DTHR."}]},{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"6eb68d9db8a3","priority":"fyi","category":"runway","kind":"changed","summary":"runway 31: controlling obstacle changed (now 78 ft tall, 2485 ft from threshold, 712 ft right of centerline, clearance slope 29:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"350","new":"712"},{"field":"DIST_FROM_THR","old":"1802","new":"2485"},{"field":"OBSTN_CLNC_SLOPE","old":"27","new":"29"},{"field":"OBSTN_HGT","old":"60","new":"78"}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"867431186fd9","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 added","source":"PFR","details":["new preferred IFR route RDU -> MDT: RDU OXFRD5 CARML COURG REEES T299 HAR MDT"]},{"cycle":"2024-12-26","from_cycle":"2024-11-28","id":"a58f49937c0f","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: PCR VALUE: 800/F/C/X/T","source":"APT_RMK","original":"PCR VALUE: 800/F/C/X/T","fields":[{"field":"REMARK","old":"PCR VALUE: 800/F/C/X/T.","new":"PCR VALUE: 800/F/C/X/T"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"2ac0fd7e6453","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: APCH RATIO 47:1 TO DTHR.","source":"APT_RMK","original":"APCH RATIO 47:1 TO DTHR.","fields":[{"field":"REMARK","old":"RWY 13 APCH RATIO 47:1 TO DTHR.","new":"APCH RATIO 47:1 TO DTHR."}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"befe50cf8e26","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Bird watch condition phase 1 (December through February and May through July) indicates light bird activity; phase 2 (August through November and March through April) indicates heavy bird activity normally associated with migratory season.","source":"APT_RMK","original":"BIRD WATCH COND PHASE 1 (DEC-FEB & MAY-JUL) INDICATED LGT BIRD ACT. PHASE 2 (AUG-NOV & MAR-APR) INDICATES HVY BIRD ACT NML ASSOCIATED WITH MIGRATORY SEASON.","fields":[{"field":"REMARK","old":"BIRD WATCH COND PHASE 1 (DECEMBER-FEBRUARY AND MAY-JULY) INDICATED LGT BIRD ACT. PHASE 2 (AUGUST-NOVEMBER AND MARCH-APRIL) INDICATES HVY BIRD ACT NML ASSOCIATED WITH MIGRATORY SEASON.","new":"BIRD WATCH COND PHASE 1 (DEC-FEB & MAY-JUL) INDICATED LGT BIRD ACT. PHASE 2 (AUG-NOV & MAR-APR) INDICATES HVY BIRD ACT NML ASSOCIATED WITH MIGRATORY SEASON."}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"7b5ced2449a4","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: NO TOUCH & GO LDGS 2300-0600 LCL.","source":"APT_RMK","original":"NO TOUCH & GO LDGS 2300-0600 LCL.","fields":[{"field":"REMARK","old":"NO TOUCH & GO LDGS 2300-0600 LCL","new":"NO TOUCH & GO LDGS 2300-0600 LCL."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"f7b8cb9350c4","priority":"ifr","category":"route","kind":"changed","summary":"preferred IFR routes: 1 changed","source":"PFR","details":["preferred IFR route ACY -> MDT is now: ACY BRIEF T307 REESY T452 HAR MDT"]},{"cycle":"2024-10-03","from_cycle":"2024-09-05","id":"bdbcce288266","priority":"fyi","category":"remark","kind":"added","summary":"new remark: USE CTN: DUE TO PROXIMITY & RWY ALMNT, AIRCREWS HAVE MISTAKEN CXY RWY 12/30 FOR MDT RWY 13/31 WHICH IS 4 NM E.","source":"APT_RMK","original":"USE CTN: DUE TO PROXIMITY & RWY ALMNT, AIRCREWS HAVE MISTAKEN CXY RWY 12/30 FOR MDT RWY 13/31 WHICH IS 4 NM E."}],"first_cycle":"2024-10-03","last_cycle":"2026-09-03"}