As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS GALLEY DRAIN AT 3L-R, (POSITION 574) SMELLS LIKE SEWER. MAINTENANCE ACCOMPLISHED WORK CARD 05-96-70 SMOKE ODOR FUMES INITIAL TROUBLESHOOTING. ODOR DISIPATED AFTER B/C GALLEY GREY WATER DRAIN VALVE REPLACED.