Narrative:

A unit of avionics that converts AC to dc power melted down and created a smell and smoke in the cabin and cockpit.

Google
 

Original NASA ASRS Text

Title: CABIN ATTENDANT RPT, B767-300, LHR-JFK. CONVERTER OF AC TO DC MELTED DOWN, CREATING SMOKE AND BURNING SMELL IN CABIN AND COCKPIT.

Narrative: A UNIT OF AVIONICS THAT CONVERTS AC TO DC PWR MELTED DOWN AND CREATED A SMELL AND SMOKE IN THE CABIN AND COCKPIT.

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.