As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI TO THE RUNWAY, THE CREW SMELLED A SULFUR/WOOD SMOKE IN THE FLIGHT DECK. THE AIRPLANE WAS REMOVED FROM SERVICE (GROUNDED) AND THE MAINTENANCE TECHNICIAN NOTICED AN ODOR IN THE GALLEY. THE OVEN/HOT CUP MODULE WAS REPLACED. THE CAUSE FOR THE ODOR WAS A FAULTY OVEN/HOT CUP MODULE.