Jump to content
Sign in to follow this  
407 Driver

212 governor

Recommended Posts

Can anyone shed some light on a recent problem I had. On Saturday, my steam-chicken governing system required adjustment on virtually every take-off and landing. (we''re talking HP kit with the 4 way beep switch). I matched Q''s, then pull in take-off power and see a 10% Q split, so I beep L or R to rematch 1 and 2 Q''s, then require another massive beep to rematch on final, this happened again and again, my thumb was very tired after a full day of this?

 

what''s up?

Share this post


Link to post
Share on other sites

Did she just come out of maintenance? Just change environments? Is the split the same each time?

 

Sounds like a bad Nf rod setup, an air leak, or a governor going south.

Share this post


Link to post
Share on other sites

Not just out of maintenance CTD; environments...well it was a whole lot colder on Saturday; and Yes, I have a hunch that #2 is about to go south...I''ll be flying with my hand on that throttle

Share this post


Link to post
Share on other sites

If this is the case. Why not change it now to see if that is the problem, before it causes more trouble than rolling of the throttle.

Share this post


Link to post
Share on other sites

It worked normally all day today, go figure? We''ll keep watching it, it may have been a spot of ice in the system, to cold (-24c is too cold for me?) or just one of those unexplained things that happen in steam-chickening.

  • Like 1

Share this post


Link to post
Share on other sites

I take it from your discription that it settles out with a split? If it splits in transit, then I''d say go after your accelerations. Tough call without seeing it. Keep your eyes on it bud, and your hand on the tap.

Share this post


Link to post
Share on other sites

Some 212''s do have a Q split on increasing or decreasing Q, this one didn''t. Just that one day it seemed to have one slow governor. I''ve had this aircraft since Jan 10, with no problems. It was an old hard-landed hull (N212HT? 2,900hrs) from Texas, that we rebulit top to bottom. Thanks for you expertise CTD.

Share this post


Link to post
Share on other sites

its the upper bearing in the TCU. there is a SB about if the bearing is worn everytime you take off the balance beam will reposition a little bit. I know you will say the beam has been fixed so it can't move. it can and does. try a new TCU .

 

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...