As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: SOF EVENT REPEATED, THE AFT FLIGHT ATTENDANTS REPORTED A STRONG ROTTEN EGG SMELL OR SULFUR TYPE SMELL IN THE AFT GALLEY. FOUND AFT DOOE DRAIN WERE CLOGGED. UNCLOGGED RIGHT HAND (AALA202604155860) AND LEFT HAND (AALA202604154282) AFT DOOR DRAIN. PER AMM 38-31-00. ACCOMPLISHED W/C 09L00021001. NO MORE ODOR NOTED.