As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AAIP PHASE INSPECTION DISCOVERED IMPROPER PARTS HAD BEEN INSTALLED WHILE INSTALLING AVIADESIGN WING SPAR STRAP PER STC SA 1602CE. STC HOLEDER WAS CONTACTED AND APPROVED PART, WHICH IS A SPECIAL ALLOY, WAS INSTALLED. FAA-PMA PART. SUGGEST CALLING THE STC HOLDER IF THERE IS ANY DOUBT NON-APPROVED PACTS HAVE BEEN INSTALLED. CHECK PAPERWORK CAREFULLY.