As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
37 HOURS SINCE THE ENGINE WAS LAST REASSEMBLED, THE VALVE COVERS WERE REMOVED. BROKEN PUSH ROD RETAINER SPRINGS WERE FOUND IN 3 OUT OF 4 CYLINDERS. 1 BROKEN STEEL SPRING PIECE HAD BEEN BENT BY THE ROCKET ARM AND HAD SIGNIFICANTLY DENTED THE VALVE COVER NEARLY PENETRATING THE COVER. THE BROKEN LW14995 SPRINGS WERE ALL .030 IN. THICK AND BRIGHTLY PLATED. THE SPRINGS ARE .040 IN. THICK AND NOT PLATED. THIS PROBLEM IS WELL KNOWN IN THE GA COMMUNITY.