Flap problem

[Gardenguy]

Just purchased a Bearhawk and having a heck of a time getting the flaps down past 10 degrees while on the ground full flaps are not a problem even when fast taxing. Scott Williamson ,ma very experanced pilot and Bearhawk owner along with being a great resource, even flew with me to try them and has never experanced this problem.......any suggestions would be appreciated.

[Mark Goldberg]

You need to look at the flap cable runs and see what might be binding. Around pulleys etc. Cables do stretch but not that much where can only get 10 degrees in the air. Have never heard of that. Mark

[Gardenguy]

Thanks Mark. It only does it in the air not on the ground so the problem is hard to replicate......I have caked the pulleys. Scott thought it might be the detent spring in the handle as that was his best quess.

[swpilot3]

I asked Jared Yates about this also for ya. He’s wondering if the issue is when you apply the handle to the third notch your only getting 10 degrees of deflection inflight, or that you can't move the handle beyond the 10 degrees position inflight? He can only use the first three notches in flight, but he's getting probably close to 25 degrees, depending on speed.

[Gardenguy]

I can only get it to 10 degrees in flight after that there is to much resistance to move on to the next notch. On the ground it is no problem even when fast taxing

[Battson]

If one of the cable shackles has flicked around the wrong way (flicked over backwards during rough landing / turbulence and locked due to the residual cable tension) that can make it very hard to actuate the flaps when there's air pressure on the wing. But you wouldn't notice it on the ground. I have had that happen one time before. A bit of rough play with the flap handle and actuating the flaps by hand one at a time, will cause the cable to go slack for a moment, and that usually clears the problem. Gives you something to think about at the time, though.

The other thing to do, is to actuate the flap by hand one at a time, and while they are in the max-down position, look at the pulley in the wing root through the lightening holes normally hidden beside the flap. If that cable has jumped off the pulled (most Bearhawks seem to have no cable retainer there), then that would also explain the difficulty you are having.

[Gardenguy]

I can only get it to 10 degrees in flight after that there is to much resistance to move on to the next notch. On the ground it is no problem even when fast taxing
I cocked the pulley other than it being stiff to turn it seems to be functioning properly.

[Gardenguy]

Do you know how many cable shackles there are and where they are located? I tried to "rough play "and it did not seem to work. Also caked the wing root and it seemed yo ve fine.

[DRLPatrol]

Have a buddy put a load on the flap to replicate the air load while you operate the lever. If you can replicate the problem you might be able to find the problem is on one flap or the other to narrow down the location of the problem.

​Doug

[AZBearhawk272]

Gardenguy,

PM me at Bearhwk272@aol.com

Kevin D # 272