As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA SMELLED BURNING PLASTIC SMELL WHEN THE FLOOR HEATER WAS TURNED ON IN THE AFT GALLEY. FWD TO MEL 21-23-65. REMOVED AND REPLACED AFT DUCT HEATER PER A220 EFIM SOLUTION #2-37570. C/W AMDS CARD 0550-2001 A220 ODI FOLLOW UP INFORMATION. CONTACTED MCC AND GOT APPROVAL TO RELEASE. MEL AND PLACARD REMOVED (M) PROCEDURES REVERSED. (LP# 9667026)