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What Would You Do ?

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What Would You Do ?

Old 3rd Jul 2020, 14:09
  #21 (permalink)  
 
Join Date: Feb 2000
Location: UK
Posts: 13,774
Originally Posted by Big Pistons Forever View Post
With not much flying going on I have been giving some of my X students scenario’s to keep the grey matter exercised.

The latest is the following scenario which happened to me exactly as described

I was flying along at 3000 ft AGL in cruise in a C 172. Suddenly with no warning the engine started running very roughly with the engine RPM varying up and down by 500 RPM and a sufficient loss of power it was doubtful level flight could be maintained. T & P were indicated in the normal range.

What would you do?
I've had almost exactly that in an Auster at 2000ft over Lincolnshire. I went through the usual drills whilst I started flying field-to-field towards the nearest runway, told ATC (a military airfield LARS service) and when the engine did quit, which it did, I was set up for a very nice field, and landed in it. A couple of minutes later there was a Typhoon over my head checking up on me.

It was a failed bolt retaining tab on one of the (inverted) engine cylinder head bolts, causing a cylinder head to slowly drop away from the engine.

G
Genghis the Engineer is offline  
Old 3rd Jul 2020, 14:14
  #22 (permalink)  

Avoid imitations
 
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
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Originally Posted by FlightDetent View Post
And hence the nick-name? Lovely!
No, that dates back only 20 years or so 😉.
ShyTorque is offline  
Old 3rd Jul 2020, 14:17
  #23 (permalink)  

Avoid imitations
 
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 12,723
Originally Posted by double_barrel View Post
I presume you were hearing gas escaping from the crack but the sound was too high frequency to be heard by older ears?

And if you encountered exactly the same fault today, you would not hear it, and blithely take off!
Quite possibly! But preferably not in a C150.....
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