As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO.1 ENGINE FUEL FILTER BYPASS LIGHT ON CLIMB. STAYED ON FOR 10MIN THEN WENT OUT.<[01] COULD NOT DUPLICATE. REF FIM 73-05 TASK 801 FOR TROUBLESHOTTING. R+R?D #1 ENGINE FUEL FILTER REF AMM 73-11-02 AND R+R?D #1 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF AMM 73-34-01. OPS CHECK GOOD. NO DEFECTS NOTED.