As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: THERE IS AN ELECTRICAL BURNING SMELL COMING FROM THE AFT GALLEY. ACCOMPLISHED SOF WORK CARD 08L00021001 AND FOUND FLUORESCENT LIGHT BALLAST FOR AFT GALLEY CEILING LIGHTS FAULTY REPLACED BALLAST. PER MM 33-26-02. SMELL DID NOT COME BACK.