As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN REPORTED THE NR 2 ENGINE FUEL FILTER BYPASS LIGHT ILLUMINATED AT ENGINE START. ACFT GROUNDED. PERFORMED FIM 73-05, TASK 801. INSPECTED AND FOUND THE NR 2 ENGINE FUEL DIFFERENTIAL PRESSURE SWITCH CONNECTOR LOOSE. SECURED THE CONNECTOR. PERFORMED EEC TEST, NO FAULTS FOUND IAW AMM 73-21-00. PERFORMED IDLE LEAK CHECK, NO LEAKS NOTED IAW AMM 71-00-00.