As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
Just after takeoff, strong odor of wood smoke was smelled in the cockpit. Aircraft returned to station. landing was normal.Corrective Action: Investigation found wood smell to be residue of accomplished APU rice hull wash C/W I/A/W MM 49-00-00. Aircraft returned to service and cleared for departure.