As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT NOTICED BURNING PLASTIC SMELL BY DOOR 4R WHEN ON FINAL. FOUND FAULT CODE 2161F1FK HEATER ELEC AFT GALLEY (101HJ2), PERFORMED TCS BITE TEST PER TSM A350-A-21-61-XX-HN-001-421A-A AND TEST FAILED. ITEM DEFER TO MEL 21-60-11A. C/W (M) PROCEDURE. INSTALLED PLACARD. A/C OK FOR SVC. R+R AFT GALLEY HEAT CONTROLLER PER A350 AMM 21-42-36. BITE AND OPS CHK GOOD. LEAK CHK GOOD.