As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER INSTALLING NEWLY OVERHAULED ENGINE ON AIRCRAFT, FOUND THAT THE -30 P.P.C. COULD NOT BE RIGGED. REMOVED THE P.P.C. AND FOUND THAT THE CAM INSIDE, ALTHOUGH MARKED WITH THE CORRECT P/N (8976021) WAS MANUFACTURED WRONG. IT HAS THE WRONG CAM PROFILE. REF: SB TPE331-72-0904.