As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THROTTLE QUADRANT EMITTING SPARKS WITH LT POWER LEVER AT TAKEOFF. FOUND T/R DEPLOY/STOW MICROSWITCH WIRES CHAFED THROUGH. POOR POSITIONING OF PLASTIC PASSTHRU CONDUIT CAUSED WIRES TO RUB HARD ON QUADRANT MECHANISM NEAR THE TAKEOFF POSITION. POSSIBLE T/R DEPLOYMENT ON TAKEOFF COULD HAVE HAPPENED IF CHAFED WIRES CONTACTED EACH OTHER.