FMS flight plan disapearing
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Hello,
I would like to report a situation I came across while flying today.
At some point between initiating the approach and short final, the flight data in the FMS (both RTE and LEGS page) suddenly disappeared...
The lines on the ND however, stayed visible (the remaining part of the route was still displayed).It happened to me twice today, in both flights I made.
EBOS - EBBR and EHEH - EBBR (different landing runways in EBBR).
I took a screenshot the second time (whilst returning to the IAF to retry the ILS X runway 25L) to show what I mean.Anyone else noticed this behavior?
Greetings, Karel
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Looking at the screenshot, it looks like the FMS has sequenced through all of the waypoints on the flight plan, including the missed approach procedure. Did you perhaps trigger slew mode, active pause, or adjust the simulator's sim rate around the time the issue occurred? As I believe slew mode imparticular can confuse the FMS and lead to situations like this.
Mark - Just Flight
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Hi Mark,
thank you for getting back at me about this.
I haven't used slew mode or active pause in this airplane yet, nor do I adjust the simrate (never do).
The moment the FMS flight plan data disapeared, was when stabilised on the final descent (ILS captured, APP mode engaged).
So the flight plan was not at its very end (missed approach still to go)...
The moment this screenshot was taken is not very representative with regards to the time it happened.
Just took it to show the FMS empty and the ND still populated with the flightplan legs.
The only thing I can think of is that I switched the ND to the ROSE mode for better indication of the LOC deviation.
Other than that, I didn't touch anything on the FMS or the MCP.Also, should the route in the FMS not be there until it gets erased (30 seconds after engine shutdown)?
Greetings, Karel
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Thank you for the info. Changing ND formats shouldn't have any relation to how the flight plan is displayed on the ND. It's not something we have seen reported elsewhere (and not something I've personally seen on my test flights), but we have logged this one internally and we'll keep monitoring it. If we're able to reproduce this one, it'll then make it much easier to fix.
Mark - Just Flight
