As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AN ODOR OF BURNING INSULATION WAS EVIDENT WHEN BREWING COFFEE IN THE AFT GALLEY WHILE EN ROUTE TO IAH. THE COFFEEMAKERS WERE TURNED OFF AND CIRCUIT BREAKERS WERE PULLED. THE AIRCRAFT ARRIVED AT IAH WITHOUT FURTHER PROBLEM. BOTH AFT GALLEY COFFEEMAKERS WERE REMOVED AND REPLACED. OPERATIONAL CHECKS WERE GOOD.