What was found
ENGINE OIL PRESSURE FILTER RESIN DE-BONDING: DURING THE ROUTINE INSP PROCESS (IAW AMM 79-22-43, PG BLOCK 701) OF ENGINE OIL PRESSURE FILTERS, PN QA07168, DE-BONDING OF THE RESIN SECURING THE FILTER END-CAPS TO THE FILTER MEDIA WERE FOUND. TESTING OF THE UNITS SHOWED THAT THEY FAILED THE MFG TEST CRITERIA. THE DE-BONDING IS LIMITED TO FILTERS WITH SN BEGINNING RT3-. A NEW UNUSED FILTER, SN RT3-4146 HAS BEEN INSPECTED AND DE-BONDING OF EQUAL MAGNITUDE TO THAT OF USED FILTERS WAS RECORDED.