As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING ODOR THRU ENTIRE CABIN. OVENS AND COFFEEMAKERS OFF. DISSIPATED EVENTUALY BUT SLIGHT ACRID ODOR. PERFORMED ENGINE RUN IAW AMM 71-00-00 WITH PACKS ON. NO ODOR DETECTED. SUSPECT ODOR CAME FROM BLADE LUBRICATION DONE THE NIGHT PRIOR TO FLIGHT. NO FURTHER MX REQUIRED AT THIS TIME.