As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A REPORT ELECTRICAL ODOR/FUMES IN AFT GALLEY. CO-PILOTS SIDE NEAR AREA OF H20 GAUGE AND AREA 419 STORAGE. NO SOURCE FOUND. SMELL STAYED ABOUT 15-20 MINUTES AND HAD DISSIPATED BY LANDING. ETOPS CATEGORY 'E': PROBLEMS WITH SYSTEMS CRITICAL TO ETOPS.