Dispatch Dispatcher
Troubleshooting; Workload
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Landed in Emergency Condition
Aircraft; Equipment / Tooling; Human Factors
Flight did a precautionary engine shut down due to loss of both oil quantity and pressure. Flt made the decision to divert to ZZZ do to drift down requirements. The issue is with [Company] flight planning system.This is the 3rd engine shutdown that has occurred within the past 3 weeks. This includes this one. I do not know if there have been others. All 3 times the Dispatcher could not get [Company] to calculate when using MEL X. All 3 times the Dispatcher had to get the chief involved to get it to work. This flight was about 10 min from landing when we were able to send the flight their final landing numbers.I was first informed of the diversion. Landing data was sent at XA33Z. Other Dispatchers helped with notifying all required individuals. It should not take a Dispatcher 25 minutes to run the information needed in an situation like this. I guarantee that if this is not fixed a flight will end up landing before a Dispatcher can calculate the required information.In fact we (Chief and I) could not get [Company] to run with that MEL and thus removed it to get it to work. The crew had asked for a landing weight of 189.0. Sabre gave 187.6 but that is with both engines working.
Dispatcher reported working a flight which had an engine fail resulting in a divert. Dispatcher had trouble using their performance software to run single engine performance numbers.