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  #1  
Unread 08-06-19, 04:20 PM
Skywalker Skywalker is offline
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Engine Not Reacting With Thr0ttle

Hello Guys
I have been flying with my P337 .N88TN for 3 months now and most of time IFR from Poland to Milan on business trips, today I was at FL170 and were in the clouds for about 30 ,mints and had some light trace of icing on the boots, during this phase of flight I noticed that front engine had lost some of its ;MP and it was showing only 27 inches,( it was set at 31 inches)
I pushed the throttle full forward but no change in ;MP' Then another thing which was strange that I could not pull the throttle back, it was like it was stuck in same position, after some time in skies clear of clouds this situation went off and ;MP came back , any clues what could be the cause. thanks a lot of for all the feed back
Dennis
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  #2  
Unread 08-07-19, 11:06 AM
frank.oconnor19 frank.oconnor19 is offline
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any other issues

Were any of the EGT, Fuel flow, TIT, etc out of norm? It almost sounds as if the wastegate on the turbo got stuck, maybe not related to the ice...
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  #3  
Unread 08-07-19, 11:22 AM
Skywalker Skywalker is offline
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Hello Frank
I had TIT and fuel flow normal ,I did not check the EGT
Dennis
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  #4  
Unread 08-07-19, 09:30 PM
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Red Air Rambo Red Air Rambo is offline
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When was the wastegate, variable controller, and turbo last overhauled?
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  #5  
Unread 08-13-19, 11:26 AM
JAG JAG is offline
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Throttle response

Dennis - when you said "Then another thing which was strange that I could not pull the throttle back, it was like it was stuck in same position" - was the throttle physically stuck, or just that it was not responding when you pulled the throttle back?

Jeff
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  #6  
Unread 08-13-19, 01:13 PM
frank.oconnor19 frank.oconnor19 is offline
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Stuck Throttle

So I was just thinking about one more possible item. Is there a way to check that the cable is not broken. We had a problem early on with the prop cable, the housing was fractured.

Thoughts?
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  #7  
Unread 08-14-19, 11:26 AM
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hharney hharney is offline
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Quote:
Originally Posted by JAG View Post
Dennis - when you said "Then another thing which was strange that I could not pull the throttle back, it was like it was stuck in same position" - was the throttle physically stuck, or just that it was not responding when you pulled the throttle back?

Jeff
If there is moisture in the cable at altitude there can be situations where the frozen moisture can restrict movement
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  #8  
Unread 08-27-19, 02:02 PM
Skywalker Skywalker is offline
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Quote:
Originally Posted by JAG View Post
Dennis - when you said "Then another thing which was strange that I could not pull the throttle back, it was like it was stuck in same position" - was the throttle physically stuck, or just that it was not responding when you pulled the throttle back?

Jeff
Hello Jeff
the throttle lever was stuck and I could not move it back, had another Flite last week again two hours in clouds -12 degrees , come light ice all the way , I had my work shop asked to lubricate the wastage and there was no problem
Dennis
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Unread 08-27-19, 02:06 PM
Skywalker Skywalker is offline
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Quote:
Originally Posted by frank.oconnor19 View Post
So I was just thinking about one more possible item. Is there a way to check that the cable is not broken. We had a problem early on with the prop cable, the housing was fractured.

Thoughts?
no all control cables were inspected or over hauled when the plane was At Brant Aero . before next flight I asked my work shop to lubricate the waste gate too and I was at FL200 for 2 hours with some ice and minus 12 degrees and heavy clouds ,and every thing worked fine, I have to admit P337 is little brave aircraft and handled ice very well with no degradation in performance at all .
Dennis
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