B377 slow down and stall at cruise altitude

[frankie1029]

Hey all,
I was flying the 377 from KMCO to KPHX when somewhere over Texas, I noticed the airspeed indicator was showing a deceleration. I was cruising at 195kts originally.

I was flying at 32,000ft with the autopilot on...

The engines showed no sign of issues and there was nothing in the crew reports.

The airplane started to pitch upward and stall.

I recovered and diverted to KSAT. (if that matters lol).

Is this a glitch or is this Accu-sim at work?

Thanks,
fc

[TreeTops]

32,000 ft is at the extreme altitude limit. What was the weight? Was the speed decrease gradual and getting faster the more it slowed down?
Try flying at 20-25,000 or even lower.

[frankie1029]

The airplane was not over loaded and I was at 32000 for well over 2 hours before this happened.

[Lewis - A2A]

You're way too high for sure, thats the issue. It could be as simple a wind change is going to knock you down. As treetops mentions dont fly it at the limit and expect SOP results.