As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A SCHEDULED INSPECTION, TWO OUTER SPRINGS LOCATED IN THE CYLINDER 1 & 2 HAVE BEEN FOUND BROKEN, SOME CORROSION HAS BEEN FOUND ON THOSE SPRINGS. THESE ENGINES ARE MORE SUBJECT TO WATER CONDENSATIONS DUE TO THE LOWER OPERATING TEMPERATURE.