As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND SWITCHING ON MAIN AIR VALVES, NOTICED A BURNING ODOR AND SMOKE. BOTH SEEMED TO FOLLOW THROTTLE MOVEMENT, HIGH POWER = MORE ODOR, LOW POWER = LESS ODOR. THE ODOR WAS LIKE A BURNED BIRD BUT NO VISIBLE BIRD STRIKES FOUND. PERFORMED BIRD STRIKE INSPECTIONS ON BOTH ENGINES AND AIRFRAME. NO DEFECTS NOTED. PERFORMED ENGINE RUNS SEVERAL TIMES NO ODOR OR DEFECTS NOTED. ALL WORK IAW TFE731-5BR M/M CH 72-00-00 KTEB-KTEB.