Rudder horn rub on C-150

zaitcev said:
Here's a little video I took today:
http://www.youtube.com/watch?v=G3pdj_H2Mro

If you were an owner of a 1976 C-150M, would this be worth fixing? If yes, how?
Click to expand...

The rubbing on the tailcone skin is normal. That's why there are rub blocks installed there. If the rubbing is excessive, someone may have put a lot of pressure on the pedals and bent the rudder horn forward and inward.

But that airplane might be beyond Airworthiness Directive 2009-10-09R1 compliance period:
http://rgl.faa.gov/Regulatory_and_G...d00368625766600560f0e/$FILE/2009-10-09 R1.pdf

It has the old rudder stops. They can snag the stop bolt and lock the rudder hard over. We had a Canadian AD on this issue in 2000. A 150 flown by an instructor and student had one of the rudder stops snap over the stop bolt head, locking the rudder. It spun in and crashed. Another contributing factor was worn rudder hinges. Grab the rudder in that cutout on its forward edge near the bellcrank (both hands, both sides) and pull back and down a bit, and feel the slop. The rudder bar springs will pull forward against you. Any hinge wear will result in more stop rubbing. If you force the rudder a bit (hold it at the aft end of the bottom fairing, not along the weak training edge) so that the stop rubs more, you can often feel the slop in the bottom hinge. Stick your finger in against the hinge's moving parts and see if there's longitudinal motion when the rudder is forced against the stop.



Dan
 
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That crash was local, I'd be spring loaded to have any control surface issues checked out, especially the rudder on a 150
 
IIRC the rudder stops on the accident plane were also installed upside down?
 
tonycondon said:
IIRC the rudder stops on the accident plane were also installed upside down?
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Yes, IIRC the horn even says "TOP" on it but it still finds it's way on incorrectly. The rudder jammed over durring spin training and they never were able to reverse it. Terrible way to go...
 
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