I did on my Arrow III a while ago. Decided to perform the repair even before we found cracks at the lower end of the ribs on both sides. Really a case of poor design since the potential for cracks exists on a whole lot of models. I would insist that this be done before I bought another Piper model subject to the SB. And since SBs aren't mandatory for Part 91 ops, unless you had an entire SB and SL list for that aircraft and did a logbook check with that list in hand, I don't know if you would ever find it!
I did this SB on both sides last August on my '76 Lance. I bought the plane May 07 and had the gear inspected when I bought, so I knew I was going to have to do the kits. I had small cracks on both sides. I did some calling around, and no shops locally knew anything about it. Then I came across Sun Aviation in Vero Beach. They said they had done a lot of them. So I scheduled some vacation time with the family in Vero Beach.
Long story short: They put the kits in at a cost of ~$3000. They also fixed a small crack in a wing rib (cost ~$4000), and kept the plane for over a month.
Lessons learned: Do not let anyone do work on your plane further than you can drive to. Don't use Sun Aviation in Vero Beach.
To remove the LG side brace and inspect the area with the dye penetrant is 3 hours per side.
If crack repair is needed its 12 hours per side.
I think that's a good reason if you are in the market for a retractable Piper to stick with low cycle airframes. And if you're contemplating buying one I think it would be a good idea to check for compliance with SB 1161 or discuss a price reduction with the seller.
