Narrative:

Approximately five minutes prior to the event occurring; I relieved the previous controller in which a position relief briefing was given. The previous controller had aircraft X on a vector to follow aircraft Y into clt due to WX and winds being more favorable for aircraft Y to be ahead of aircraft X. The previous controller stated that aircraft Y was proceeding direct; however it was not made clear if aircraft Y was proceeding direct ctf or booze intersection; which is 5NM west of ctf on the arrival. Clt is hosted by ZTL; and there are known interface issues between ZJX and clt transitional aircraft. Due to these issues; ZJX is unable to amend flight plans on the hustn or ctf arrivals into clt. Because ZJX is unable to amend the flight plans; when aircraft are cleared direct these fixes on the stars; the updated routes are not input to the NAS. Once I observed aircraft X 5NM behind aircraft Y; I cleared aircraft X direct booze. At this time both aircraft were within 20NM of booze and descending to 110. I then observed compression between aircraft Y and aircraft X and instructed aircraft X to reduce to 250KTS. Once the speed restriction was issued; I also noticed aircraft X was on more of a course direct ctf rather than booze; which I thought aircraft Y was proceeding to. I then cleared aircraft Y direct booze and aircraft X a vector 20 degrees right of course. At this point; separation was lost. Once I gained lateral separation; I cleared aircraft X back direct booze.route amendments should be allowed on aircraft transitioning from ZJX to clt airspace; and all information should be relayed in relief briefings.

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Original NASA ASRS Text

Title: ZJX Controller reports of automation that does not work well and causes confusion with controllers if aircraft are or are not direct certain fixes.

Narrative: Approximately five minutes prior to the event occurring; I relieved the previous controller in which a position relief briefing was given. The previous controller had Aircraft X on a vector to follow Aircraft Y into CLT due to WX and winds being more favorable for Aircraft Y to be ahead of Aircraft X. The previous controller stated that Aircraft Y was proceeding direct; however it was not made clear if Aircraft Y was proceeding direct CTF or BOOZE intersection; which is 5NM west of CTF on the arrival. CLT is hosted by ZTL; and there are known interface issues between ZJX and CLT transitional aircraft. Due to these issues; ZJX is unable to amend flight plans on the HUSTN or CTF arrivals into CLT. Because ZJX is unable to amend the flight plans; when aircraft are cleared direct these fixes on the STARS; the updated routes are not input to the NAS. Once I observed Aircraft X 5NM behind Aircraft Y; I cleared Aircraft X direct BOOZE. At this time both aircraft were within 20NM of BOOZE and descending to 110. I then observed compression between Aircraft Y and Aircraft X and instructed Aircraft X to reduce to 250KTS. Once the speed restriction was issued; I also noticed Aircraft X was on more of a course direct CTF rather than BOOZE; which I thought Aircraft Y was proceeding to. I then cleared Aircraft Y direct BOOZE and Aircraft X a vector 20 degrees right of course. At this point; separation was lost. Once I gained lateral separation; I cleared Aircraft X back direct BOOZE.Route amendments should be allowed on aircraft transitioning from ZJX to CLT airspace; and all information should be relayed in relief briefings.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.