As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED A CHECK FIRE DETECTION WARNING AND HAD FWD AND AFT BOTTLE LOW LIGHTS. F/A REPORTED DETECTING AN ELECTRICAL ODOR IN AFT GALLEY AREA. NO INLET OR OUTLET VALVE LIGHTS WERE ON. DIVERTED AND ACCOMPLISHED UNEVENTFUL LANDING. REPLACED CONTROL AMPLIFIER, LOW FIRE BOTTLE AND WIRE CHECKS FOR CONTROL AMP. OPS CHECKED GOOD.