Narrative:

Flight attendants reported burning smell near coffee makers in first class galley. All cockpit members took turns investigating. Electrical burning was suspected. A decision was made to declare an emergency and divert to lhr where an uneventful overweight landing was made on runway 27R. All associated abnormal/emergency checklists were completed. Evidence of burnt wires was found in one of the coffee makers. Callback conversation with reporter revealed the following information: the reporter stated the source of the burning smell was burned wiring in a coffee maker. The reporter said the ovens were not on when the smell was reported to the cockpit and the burning smell could only come from the coffee makers. The reporter stated no circuit breakers were tripped in this incident. The reporter stated 1 coffee maker was removed with evidence of burned wiring and the replacement operated normally with no smoke smell.

Related reports:

Google
 

Original NASA ASRS Text

Title: A B767-300ER IN CRUISE AT FL340 DECLARED AN EMER AND DIVERTED DUE TO BURNING SMELL NEAR COFFEE MAKERS IN FIRST CLASS GALLEY.

Narrative: FLT ATTENDANTS RPTED BURNING SMELL NEAR COFFEE MAKERS IN FIRST CLASS GALLEY. ALL COCKPIT MEMBERS TOOK TURNS INVESTIGATING. ELECTRICAL BURNING WAS SUSPECTED. A DECISION WAS MADE TO DECLARE AN EMER AND DIVERT TO LHR WHERE AN UNEVENTFUL OVERWT LNDG WAS MADE ON RWY 27R. ALL ASSOCIATED ABNORMAL/EMER CHKLISTS WERE COMPLETED. EVIDENCE OF BURNT WIRES WAS FOUND IN ONE OF THE COFFEE MAKERS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE SOURCE OF THE BURNING SMELL WAS BURNED WIRING IN A COFFEE MAKER. THE RPTR SAID THE OVENS WERE NOT ON WHEN THE SMELL WAS RPTED TO THE COCKPIT AND THE BURNING SMELL COULD ONLY COME FROM THE COFFEE MAKERS. THE RPTR STATED NO CIRCUIT BREAKERS WERE TRIPPED IN THIS INCIDENT. THE RPTR STATED 1 COFFEE MAKER WAS REMOVED WITH EVIDENCE OF BURNED WIRING AND THE REPLACEMENT OPERATED NORMALLY WITH NO SMOKE SMELL.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.