I just looked at a flap and I Believe a Good Sheet Metal Person
can do a repair by placing a doubler on top of the flap !
All of the rivets where the Flap bracket attaches to the place in question are accessible from the outside !
I'm not an A&P or IA , but have worked on Light A/C for several years.
To Me , It would only take 30min. to repair if the flap was off the wing.
But without seeing more of the flap bracket where it attaches to the flap,
there could be more damage than meets the Eye !
So check with an A& P that's good with Sheet metal repair!
Crack in flap
Forum rules
You must be a member of the Cessna 120-140 Association in order to post new topics, reply to existing topics, or search for information on this forum. Use the "Join" link in the red menu bar.
You must be a member of the Cessna 120-140 Association in order to post new topics, reply to existing topics, or search for information on this forum. Use the "Join" link in the red menu bar.
-
- Posts: 68
- Joined: Sat Jul 28, 2018 3:54 pm
- Name: John L
- Aircraft Type:
- Occupation-Interests:
- Contact:
- 6597
- Posts: 362
- Joined: Tue May 01, 2018 7:00 am
- Location: Vancouver WA KVUO
- Name: David Sbur
- Aircraft Type: '46 140 0-200A
- Occupation-Interests: Agriculture
- Contact:
Re: Crack in flap
A little better look from my bird...
- 6643
- Posts: 2389
- Joined: Tue May 01, 2018 7:00 am
- Location: KLCI, NH
- Name: John C
- Aircraft Type: 1946 C140/C90
- Occupation-Interests: A&P, semi-retired
- Contact:
Re: Crack in flap
You need a view like the one above. Look closely at the relief hole in the spar where it's bent from vertical to horizontal. Also, you can pull the flap down by hand and get a look at the bracket and spar from the forward facing surface.
I haven't looked at one recently, but I think I'd try to put the doubler on the underside of the skin, if only for looks, but I'm thinking you'll need a rivet or two on the "inside" (outboard of the rib) to do it right.
I haven't looked at one recently, but I think I'd try to put the doubler on the underside of the skin, if only for looks, but I'm thinking you'll need a rivet or two on the "inside" (outboard of the rib) to do it right.
John Cooper
www.skyportservices.net
www.skyportservices.net
-
- Posts: 68
- Joined: Sat Jul 28, 2018 3:54 pm
- Name: John L
- Aircraft Type:
- Occupation-Interests:
- Contact:
Re: Crack in flap
Good Suggestion John C.
Doubler under the Flap Skin Would be neat !
Also, to the owner.
Make sure the bolt that attaches the flap bracket to the flap torque tube is not tighten down!
As it needs to be Loose as a Goose to allow for the difference in angles between the flap torque tube
and the wing Dihedral!
Doubler under the Flap Skin Would be neat !
Also, to the owner.
Make sure the bolt that attaches the flap bracket to the flap torque tube is not tighten down!
As it needs to be Loose as a Goose to allow for the difference in angles between the flap torque tube
and the wing Dihedral!
- 6643
- Posts: 2389
- Joined: Tue May 01, 2018 7:00 am
- Location: KLCI, NH
- Name: John C
- Aircraft Type: 1946 C140/C90
- Occupation-Interests: A&P, semi-retired
- Contact:
- 6643
- Posts: 2389
- Joined: Tue May 01, 2018 7:00 am
- Location: KLCI, NH
- Name: John C
- Aircraft Type: 1946 C140/C90
- Occupation-Interests: A&P, semi-retired
- Contact:
Re: Crack in flap
Maybe I didn't state that very well. Look at the area in the circle:
John Cooper
www.skyportservices.net
www.skyportservices.net
-
- Posts: 236
- Joined: Tue May 01, 2018 7:00 am
- Location: KFGU TN
- Name: Edd
- Aircraft Type: 140
- Occupation-Interests: Retired
- Contact:
Re: Crack in flap
Please show the picture of the same location on the opposite flap. I don'\t want to drive 34 miles just to see mine. ![Smile :)](./images/smilies/icon_e_smile.gif)
![Smile :)](./images/smilies/icon_e_smile.gif)
-
- Posts: 27
- Joined: Sun Sep 10, 2023 7:15 am
- Name:
- Aircraft Type:
- Occupation-Interests:
- Contact:
Re: Crack in flap
Thanks for the help everyone, waiting for local mechanic to take a look.
Who is online
Users browsing this forum: No registered users and 5 guests