As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORT BURNING ODOR COMING FROM THE AFT GALLEY AREA. THE AIRCRAFT WAS GROUNDED. ACCOMPLISHED JC 26L00021001. FOUND THE BURNING ODOR TO BE COMING FROM THE AFT GALLEY CHILLER. REPLACED THE AFT GALLEY CHILLER IAW AMM 25-34-51. OPS CHECKED GOOD. NO FURTHER ODOR NOTED.