What was found
#2 ENGINE FUEL FILTER BYPASS LIGHT CAME ON TWICE ON TAXI OUT. GROUNDED - YES. FLIGHT CREW REPORTS LIGHT WAS INTERMITTENT BOTH TIMES FOUND MTX MSG 73-31072 "FUEL FILTER SIGNALS DISAGREE". FOLLOWED B737-900 FIM 73-05 TASK 801 PERFORMED EEC BITE TEST CONFIRMED FAULT MSG 73-31072 REMOVED AND REPLACED FUEL FILTER IAW B737-900 AMM 73-11-02-000-801/73-11-02-400-801. PERFORMED IDLE LEAK CHECK NO LEAKS FOUND AT THIS TIME.