As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA REPORT UNUSUAL ODOR IN AFT BUNKROOM. [SUP 05-18-07] CHECKED FOR BURN, FOUND BURNING SMELL COMES BACK WHEN F/A CREW REST HEATER OPERATED. DEACTIVATED HEATER PER MEL 2141A. REPLACED CREW REST HEATER AND OPS CHECK NORMAL. SUSPECT HEATER ELEMENT SHORTING WITH HIGH CURRENT MELTING INSULATION/ PLASTIC IN HEATER UNIT.