What was found
#2 FUEL FILTER BYPASS ILLUMINATED AFTER START AND ILLUMINATED INTERMITTENTLY THEREAFTER. GROUNDED - YES. A/C HAS HISTORY. CONNECTOR GVI FOR DP0803 FUEL FILTER CLOG SWITCH NO DEFECTS NOTED REF B737-900 FIM 73-05 TASK 801. REMOVED #2 FUEL FILTER PER B737-900 AMM 73-11-02-000-801-F00. NO CONTAMINATION NOTED. DUE TO HISTORY R&R #2 FUEL FILTER DIFFERENTIAL PRESSURE SWITCH PER AMM 73-34-01-000/400-801-F00. OPS TEST GOOD. FUEL FILTER BYPASS LIGHT DID NOT RETURN. AFTER IDLE POWER CHECK NO LEAKS NOTED. GROUND VERIFICATION OF ETOPS SIGNIFICANT SYSTEM ACCOMPLISHED. REF FIM 73-05 TASK 801.