As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN THRUST LEVERS PUSHED FWD, SMOKE FILLED COCKPIT AND WHEN THRUST LEVERS PULLED BACK SMOKE STARTED TO DISSIPATE. AIRCRAFT RETURNED TO SERVICE. CLEANED EXHAUST NOZZLE NR 1. OPERATIONAL CHECK GOOD IAW EMB 145 AMM 36-10-00 AIRCRAFT RETURNED TO SERVICE