As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI TO RUNWAY, THE FOLLOWING LIGHTS REMAINED ON AFTER ENG START, LEFT CTR FUEL PUMP/L ENG BLEED VALVE/LEFT EFIS CONTROL. T/S PER FIM 77-12-0, EXAMINED CIRCUIT BETWEEN N2 SENSOR AND DCUS FOUND OK. VERIFIED RESISTANCE OF N2 SENSOR OK CLEANED AND REINSTALLED ELEC CONNECTORS RUN BOTH ENGS BY FLT CREW ALL INDS NORMAL. A/C OK FOR SERVICE, L N2 ANALOG AND L N2 SPEED CARD WAS ON STS PAGE.