As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRICAL BURNING ODOR IN COCKPIT & CABIN, DISSIPATED QUICKLY, TURNED OFF RIGHT RECIRCULATION FAN. [06-14-07] CONDUCTED TROUBLESHOOTING TO IDENTIFY WHETHER SOURCE OF ODOR COULD BE FWD E&E COMP OR PNEUMATICS. RAN PACKS SEVERAL HRS ALSO RT FAN UNABLE TO DUPLICATE. ROOT CAUSE COULD NOT BE ESTABLISHED.