As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE FILTER BYPASS ILLUMINATED AFTER ENGINE START. ACFT GROUNDED. REMOVED FUEL FILTER IAW MM 73-11-02 AND INSTALLED NEW FUEL FILTER NO CONTAMINATION NOTED. REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH IAW MM 73-34-01. RAN ENGINE, NO LEAKS NOTED.