{"schema_version":1,"airport":"GAI","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"eb6f9f83b069","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: 101 MONROE ST 4TH FLOOR -> 13501 PENN SHOP RD; airport contact city: ROCKVILLE -> MT AIRY; airport contact zip code: 20850 -> 21771","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"101 MONROE ST 4TH FLOOR","new":"13501 PENN SHOP RD"},{"field":"TITLE_CITY","old":"ROCKVILLE","new":"MT AIRY"},{"field":"ZIP_CODE","old":"20850","new":"21771"}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"f5db8a9bdab8","priority":"ifr","category":"chart","kind":"changed","summary":"arrival TRSTN FOUR (RNAV) changed","source":"D-TPP","chart":{"code":"STR","name":"TRSTN FOUR (RNAV)","amdt":"","pdf":"https://aeronav.faa.gov/d-tpp/2607/05326TRSTN.PDF"}},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"b35e4c64299b","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: controlling obstacle changed (now , clearance slope 34:1); controlling obstacle: TREES -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":""},{"field":"CNTRLN_OFFSET","old":"197","new":""},{"field":"DIST_FROM_THR","old":"1406","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"27","new":"34"},{"field":"OBSTN_HGT","old":"44","new":""},{"field":"OBSTN_TYPE","old":"TREES","new":""}]},{"cycle":"2026-07-09","from_cycle":"2026-06-11","id":"4f2493683df6","priority":"fyi","category":"runway","kind":"changed","summary":"runway 32: controlling obstacle changed (now 27 ft tall, 952 ft from threshold, 116 ft left of centerline, clearance slope 27:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"190","new":"116"},{"field":"DIST_FROM_THR","old":"978","new":"952"},{"field":"OBSTN_CLNC_SLOPE","old":"32","new":"27"},{"field":"OBSTN_HGT","old":"24","new":"27"}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"e1413c9f84e4","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: controlling obstacle changed (now 44 ft tall, 1406 ft from threshold, 197 ft left of centerline, clearance slope 27:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"0","new":"197"},{"field":"DIST_FROM_THR","old":"1562","new":"1406"},{"field":"OBSTN_CLNC_SLOPE","old":"34","new":"27"},{"field":"OBSTN_HGT","old":"39","new":"44"}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"bfb6a41a7631","priority":"fyi","category":"runway","kind":"changed","summary":"runway 32: controlling obstacle changed (now 24 ft tall, 978 ft from threshold, 190 ft left of centerline, clearance slope 32:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"66","new":"190"},{"field":"DIST_FROM_THR","old":"946","new":"978"},{"field":"OBSTN_CLNC_SLOPE","old":"29","new":"32"},{"field":"OBSTN_HGT","old":"25","new":"24"}]},{"cycle":"2025-02-20","from_cycle":"2025-01-23","id":"50ec82706556","priority":"ifr","category":"procedure","kind":"changed","summary":"arrival/departure procedures new or updated: LINSE, TRSTN4","source":"STAR/DP","procedures":{"updated":["LINSE","TRSTN4"],"removed":[]}},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"8cd5712af6aa","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF.  PAPI RWY 14 & 32 OPR CONSLY.","source":"APT_RMK","original":"ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF.  PAPI RWY 14 & 32 OPR CONSLY.","fields":[{"field":"REMARK","old":"ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF","new":"ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF.  PAPI RWY 14 & 32 OPR CONSLY."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"c5aea15f1159","priority":"fyi","category":"frequency","kind":"changed","summary":"remark: ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF -> ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF.  PAPI RWY 14 & 32 OPR CONSLY.","source":"FRQ","fields":[{"field":"REMARK","old":"ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF","new":"ACTVT REIL RWY 14 & 32; MIRL RWY 14/32 - CTAF.  PAPI RWY 14 & 32 OPR CONSLY."}]},{"cycle":"2024-10-31","from_cycle":"2024-10-03","id":"be79be7c9e28","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: threshold crossing height: 42 -> 40 ft AGL","source":"APT_RWY_END","fields":[{"field":"THR_CROSSING_HGT","old":"42","new":"40"}]},{"cycle":"2024-10-03","from_cycle":"2024-09-05","id":"ebcb12752dab","priority":"fyi","category":"runway","kind":"changed","summary":"runway 14: threshold crossing height: 53 -> 42 ft AGL; visual glide slope indicator: 4-box VASI on left side of runway (V4L) -> 4-light PAPI on left side of runway (P4L)","source":"APT_RWY_END","fields":[{"field":"THR_CROSSING_HGT","old":"53","new":"42"},{"field":"VGSI_CODE","old":"V4L","new":"P4L"}]},{"cycle":"2024-09-05","from_cycle":"2024-08-08","id":"079bdee0544f","priority":"ifr","category":"procedure","kind":"changed","summary":"arrival/departure procedures new or updated: CONLE, FOXHL, LINSE, TERPZ, TRSTN3","source":"STAR/DP","procedures":{"updated":["CONLE","FOXHL","LINSE","TERPZ","TRSTN3"],"removed":[]}}],"first_cycle":"2024-09-05","last_cycle":"2026-09-03"}