Commercial Fixed Wing
Dispatch Dispatcher
Human-Machine Interface; Troubleshooting
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Other / Unknown
General None Reported / Taken
Software and Automation
I took over this flight from another shift.  Normally this flight is scheduled to operate ZZZZ-ZZZ; but due to ZZZ weather it was rescheduled to arrive ZZZ1.  Flight was sent with a redispatch and ETOPS alternates of BIKF/CYYT and no destination alternate for ZZZ1. While enroute and well past the EEP (ETOPS Entry Point); the crew sent an ACARS:What airport is defining ETOPS exit"I checked the flight plan and noticed the EXP1 (ETOPS Exit Point) was showing ZZZ1.  The EEP airport was correctly identified as EINN and the ETP (Equal Time Point) location seemed accurate when looking at the route.  I tried to figure out the reason for this; including creating dummy flight plans (non-redispatch; etc) and was unable to get a proper EXP.  I advised the crew the correct EXP defining airport was CYYR (using range rings to define) and that while the ETOPS Exit Point on the release was not correct; the critical fuel scenario based on the ETP between BIKF/CYYT seemed accurate. I asked a few peers to review this to make sure I wasn't missing something and they all agreed.  Another dispatcher found a similar issue on a similar routing of (Aircraft X ZZZZ-ZZZ1 on date).  I advised the Dispatcher on Duty and he contacted Name1 immediately.  Unfortunately; capturing line mode is not working for any flight right now."
Air carrier dispatcher was notified by flight crew of an error with the ETOPS flight plan during an Atlantic Crossing.