Originally Posted by
Roj approved
Some very good information here regarding Engine Stalls, thanks to the contributors.
Something else to consider from the FCOM DSC 30-30-10 p1/2
When an engine anti-ice valve is open, the N1 or EPR limit is automatically reduced and, if
necessary, the idle N1 or EPR is automatically increased for both engines in order to provide the
required pressure.
As I understand it, the second part of that description, an increase in EPR is an important part of preventing the stall.
I believe you are talking about a control function. Many variations in control functions for engines over the years and if we get into these this thread may get very complex.
For example. Many controls don't limit EGT since it's a time limited concern and pilots would prefer in emergencies to decide for themselves. But if you add an after design crutch of opening a bleed by pilot command, then the engine efficiency is going to suffer and EGT increase. As long as you are not trying to extract high power, there should be no problem
just a thought