As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHUT DOWN ENGS & EVACUATED ACFT AFTER DETECTING SMOKE COMING FROM THROTTLE QUADRANT AREA DURING TAXI TO RUNWAY 08. VISUAL INSPECTION OF INSTRUMENT PANEL LIGHT DIMMER ASSEMBLY & FOUND A FAILED RESISTOR INTEGRAL TO ASSEMBLY. REMOVED AFFECTED ASSEMBLY & INSTALLED SERVICEABLE DIMMER ASSEMBLY.