Hi,I just flew into LOWI and this is what my ND looked like. Needless to say, I'd be dead if that was right ;)Also, it seems strange to me that both FMC's have to be working to get TERR data on any ND. I would have thought one FMC would be enough to generate that data (not sure about the NG, but there are classics that only have a single FMC with two CDUs)ThanksMark

Strange. Can't say I've seen it be incorrect yet. I've flown around LOWI and it has been fine.Best regards,Robin.

that means you're flying above very big mountains.

What happen if you change range?

Andrea, the display was all red regardless of range.Mark

I just flown in that area with the same altitude (9500fts) and other than few yellow/red areas I have not found your all red scenario. I don't have it also at lower altitudes where the red areas start to grow, but there are still yellow and green parts (speaking about 4500fts). I've not tried an approach to lowi, neither the one you are doing in the screenshot, but, I don't have this on my sim.

LOWI terrain displays correctly for me.Red indicates terrain above you. All red is impossible when flying. Must be a bug, it reminds me of the all cyan bug over water.The terrain display should be available with GPS position data alone. Single FMC shouldn't be a problem.

Mark,We've had a few reports of this but nothing that was actually reproducible so we could debug it. If you figure out a way to reliably reproduce it, let us know. (preferably in a ticket so I can track it better)

I had the same issue yesterday approaching PANC after flying in from PHNL. But have not been able to make this a reproducible event. It never happened prior to SP1c.

Ok I think I found a probable cause:I flew SEQU - MHTG. The TERR was on for the entire flight and was working correctly.After landing, I was a bit eager shutting down the engines and the APU wasn't ready yet (doh!)Once I connect the APU gen to both transfer busses, the ND was showing all red...I haven't tried the scenario again, but I'm positive that the EGPWS was working correctly before turning off the engines and I immediately noticed the red afterwards.Can someone please try?Mark