As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE FUEL FILTER BYPASS ILLUMINATED AFTER LANDING. SHUTDOWN NR 1 ENGINE. ACFT GROUNDED. R & R NR 1 ENGINE FUEL FILTER REF AMM 73-11-02. NO CONTAMINATION. R & R FUEL FILTER DIFFERENTAL PRESSURE SWITCH, REF AMM 73-34-01. RAN MOTOR LEAK CHECK GOOD AND ELECTRONIC ENGINE CONTROL TEST PASSED, REF AMM 73-21-00.