As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE OIL FILTER MESSAGE DISPLAYED. MESSAGE REMAINED WHEN THRUST REDUCED. ENGINE NOT SHUTDOWN. CREW COMMENTS: MSG IS DISPLAYED ON UPPER EICAS. COMPLIED WITH MEL CARD 7935B. FLIGHT CREW OPERATED ENGINE FOR LEAK CHECK OF OIL FILTER INSTALLATION. REFER TO MM79-35-00 PG106 FIG 103 FLOWCHART. CHECK FOR EXTRA GROMMET IN SW, IF NOT FOUND REPLACE DIFF PRESS SW 481-1960 PER MM. TROUBLESHOT PER AMM. FOUND DIFF PRESS SWITCH AT FAULT. REMOVED AND REPLACED SAME. RAN ENGINE NOW OPS AND LEAK CHECKS GOOD.