As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE COMPLYING WITH PIPER SB1161D, CRACKING WAS DISCOVERED ON THE FLANGE IDENTIFIED BY THE SERVICE BULLETIN, ON THE LEFT WING. THE FLANGE WAS PART OF A PREVIOUSLY INSTALLED REPAIR KIT AND WAS NOT THE WING RIB'S ORIGINAL FLANGE. THE REPAIR KIT IS NOT AN ADEQUATE PERMANENT SOLUTION TO THE STRESSES CAUSING THE PART FAILURE/CRACKING.