As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, LT ENGINE FUEL FILTER STATUS MESSAGE ILLUMINATED IAW TASK 73-11, FAULT TREE 804. R & R LT ENGINE FUEL FILTER IAW AMM TASK 73-11-02. UPON REMOVAL OF FUEL FILTER, FOUND DIFFERENTIAL PRESSURE SWITCH PLUG DAMAGED. R & R SWITCH IAW AMM 73-34-01. OPS NORMAL AFTER ENGINE RUN ON GROUND. NO FAULTS NOTED. OK FOR SERVICE. NO LEAKS NOTED.