Compressor stall a320
Hello, during handling the ecam for eng 1 stall, one of the line states performance permitting XBleed use. I have a questions wrt the use of APU bleed in this situation.
If parameters are not normal we secure the engine and consider eng damage. In case we don't use APU bleed. But if the parameters are within limits with thrust reduced, would it be prudent to use the APU bleed? One could argue that something led to the stall cause of which is unknown in the air so it's safer to avoid using the APU bleed. But what if you are operating at a performance limited rwy? |
I’m generally a fan of increased redundancy, so when given the option, I’ll always start the APU if there’s been an engine failure. Why put undue stress on the good engine?
Not following your question on the runway. What’s the APU got to do with your stopping distance? |
Originally Posted by Check Airman
(Post 10820822)
Not following your question on the runway. What’s the APU got to do with your stopping distance? |
That's right, I mean go around performance.
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Originally Posted by bayblade
(Post 10820759)
Hello, during handling the ecam for eng 1 stall, one of the line states performance permitting XBleed use. I have a questions wrt the use of APU bleed in this situation.
If parameters are not normal we secure the engine and consider eng damage. In case we don't use APU bleed. But if the parameters are within limits with thrust reduced, would it be prudent to use the APU bleed? One could argue that something led to the stall cause of which is unknown in the air so it's safer to avoid using the APU bleed. But what if you are operating at a performance limited rwy? it all depends whether You assess the engine as damaged or not, based on parameter analysis. In case You do, You can switch OFF the Pack on ENG 2 to gain extra performance (1300-1500 kg depends on variant). |
But if the parameters are within limits with thrust reduced, would it be prudent to use the APU bleed? One could argue that something led to the stall cause of which is unknown in the air so it's safer to avoid using the APU bleed. But what if you are operating at a performance limited rwy? |
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