As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG NR 2 FUEL FILTER BYPASS LIGHT ILLUMINATED ON TAXI OUT. ON AT 2121 THEN WENT OUT THEN BACK ON AT 2123 AND THEN OUT AGAIN. PERFORMED FIM TASK 73 31 00 810 802 EEC FOUND TO BE BAD. REMOVED AND REPLACED NR 2 ENGINE EEC REF MM 73 21 60. PERFORMED OPS CHECK, ALL TEST GOOD AND NO FAULTS FOUND. REPLACED NR 2 FUEL FILTER ELEMENT REF AMM 73 11 02 000 801 F00 AND 73 11 02 400 801 F00. ACCOMPLISHED LEAK CHECK, CHECK GOOD REF MM 71 00 00.