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 ILLUM AT LEVEL OFF 34,000. REMAINED ON UNTIL SHUTDOWN (3 PLUS HOURS). GROUNDED - YES. REPLACED NR 1 ENGINE FUEL FILTER. REF AMM 73-11-02. ACCOMPLISHED IDLE POWER LEAK CHECK. REF AMM 71-00-00-700-801-F00. PASSES ALL TESTS.