"mazzonni" wrote in message
oups.com...
Hi to all!
SNIP
... the blade with broken rod is
in best condition ine regards to the other two, so...


Were a Pitch change rod to break, the head would immediately be VERY out of
track. So you would have noticed a very bad one per rev vertical vibration.

Gradual loss of power in a Turbomeca Astazou engine? - Broken spring in
governor bypass. The RPM drops with power but recovers when power is
reduced.

Gradual loss of Main Rotor RPM with no change in engine RPM - Clutch
slipping.

Slatts