As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON ROTATION NOTICED A BURNING SMELL FROM THE PACK SYS, A SMALL LIKE FEATHERS OR BIRD. POSSIBLE INJECT OF BIRD ON LT ENGINE. PERFORMED FIM TASK 21-22-00, NO ABNORMAL ODOR IN COCKPIT OR CABIN AREA. RAN LT ENGINE & PACK IAW AMM 7100-00, NO DEFECTS NOTED.