As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE OIL FILTER BYPASS VALVE INSP, IT WAS NOTED THAT THE END HSG WAS CRACKED AT THE ATTACHING PIN END CAP WITH MATERIAL MISSING. REMOVED THE RT OIL BYPASS CHECK VALVE PN 3060782-2, SN 08-06451-08952 AND FOUND A CRACK ON THE END CAP. INSTALLED NEW VALVE PN 3060782-2, SN 10-06451-10589.