Corrosion Found During Annual - How Bad?

[LevelWing]

Some corrosion was found during annual. One area was on the flap and one area was in the wheel well. While the mechanic continues the inspection, I wanted to get the take of the community here on how bad it is and what it would take to fix.

[EricJ]

Those both look Very Bad.    The bottom one looks to be on a component that may be replaced, but the top one looks structural.    

[MB65E]

Dang. It’s all of our worst fear. While it might sound harsh, Scrap the wing. Salvage wings can still be sourced. 
-Matt
 

[LevelWing]

I was hoping that wouldn't be the case. If it's really this bad, what are my options? Replacing the week will be incredibly expensive. What can I get for the plane with the wing like this? Salvage the whole plane?

[Andy95W]

Replacing the flap bracket should be pretty straightforward.  For the wing, you’ll probably want to contact someone like Don Maxwell.  His shop can probably do the repair or recommend a shop that can.  His shop will also be able to tell you if that one extruded aluminum angle can be replaced.  I doubt you’ll need a whole new wing, but the cost will be significant either way.

I think there’s a good chance that you’ll be able to get a ferry permit to fly to a repair location, but nothing more than that.

Sorry you have to deal with this.

[DCarlton]

I believe there was a service bulletin for the flap hinges years ago.  Mine was corroded and needed replacement.  Discovered when the plane was disassembled for paint.  The corrosion was exactly where the bulletin said inspect if I remember correctly.  

[Slick Nick]

Finding the wing won’t be an issue, places like BAS will have a few. It’s finding a shop that you trust to do the work that will be the tricky part, and then you’ve got to consider things like do the tanks in the new wing need resealimg, etc before you have it bolted on. 

[LANCECASPER]

10 hours ago, LevelWing said:

Some corrosion was found during annual. One area was on the flap and one area was in the wheel well. While the mechanic continues the inspection, I wanted to get the take of the community here on how bad it is and what it would take to fix.

If there is evidence of rodent urine, which is very corrosive, you might check to see if your insurance company would cover it.

 

[67 m20F chump]

Email the pics to maxwells shop and see what he says.

[redbaron1982]

12 hours ago, LevelWing said:

Some corrosion was found during annual. One area was on the flap and one area was in the wheel well. While the mechanic continues the inspection, I wanted to get the take of the community here on how bad it is and what it would take to fix.

The corrosion looks bad (intergranular with exfoliation) and not "repairable", the second picture does look like a part that can be replaced. I'm sure I know exactly which is the corroded part in number 1, but doesn't look structural to me (like as the spar or spar cap), do you have more pictures?

[redbaron1982]

1 hour ago, 67 m20F chump said:

Email the pics to maxwells shop and see what he says.

They repaired a corroded wing spar cap on my J model, replacing the aft stub wing spar. It was not cheap (20k - 30k), and it took over a year, but the airplane flies great now.

[67 m20F chump]

I had it too on the lower spar cap inboard of the right fuel tank.  I replaced the wing with a parted out planes wing.  6k for the wing and about 18 months of my free time plus a bunch of A&P supervision.  I never want to do that again.  Put in bladders too.