As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SECOND SEGMENT OIL PRESSURE TRANSFER TUBE AT "A" FLANGE BRACKET O-RING SEAL FAILURE. SEAL WAS ROLLED AND BROKE WHILE REMOVING. SEAL WAS INSTALLED 76.1 HRS. BEFORE AT HOT SECTION SERVICE. SEAL MAY NOT HAVE BEEN LUBED PRIOR TO INSTALLATION.