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Interesting...
The first event was Friday afternoon at 220. Unfortunately, this data did not record, even though I tried to save it. The second and third events were Monday afternoon, on the ground runup at SL(attached on chart 2). There was only about 0.2 hrs engine time between events on Fri and Mon. Then it cleared up. Does that fit one of these patterns?
After these two events on Monday we have not been able to duplicate, but that's when we took everything apart and ran lots of fuel through the system to test and may have flushed something.
Unfortunately, on the data record, I noticed yesterday it takes about4-5 seconds for the fuel flow record to catch up to the actual flow, so for example the long (half life/exponential) decay of the fuel flow when the engine quit, is an artifact. I believe it went to zero quite suddenly when the engine quit(the red trace- when MAP decays to SL 30"). Same occurs on the runup.
The key (see chart 2) is to see that on the lean run the MAP comes up to full power with only 24 gph(yellow). On the engine fail run(red), it quits, before reaching full power on the runup.
Thanks
Bill
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