Originally Posted by
Noknoipobin
If that’s the case, I don’t think it’s legal. My company has had several similar incidents. When we asked where the terrain database came from, it turned out that the person who created the DNP made a mistake, so it had to be corrected. You might want to check with your company — it could be the same situation.
Or maybe they have a more up-to-date database indicating that it’s safe to descend as stated — but if not, that would be quite concerning.
So, finally spoke with my company's performance engineer. And what he told me is that they plan the escape route based on the Route MORA of the airway or escape route/airway. Since route MORA caters to 10nm either side of the airway, and the route MORA for said airway is all below F100, the descent to F100 can occur. The only catch here is you need to perform the escape maneuver strictly following assigned procedure