As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PER CREW, SLIGHT BURNING ODOR IN COCKPIT, PLASTIC LIKE SMELL, MOST NOTICABLE NEAR NR 1 CSD TEMP INDICATOR. INTERMITTENT AND ONLY ON RT SIDE OF COCKPIT. INSPECTED AREA BEHIND FLIGHT ENGINEER S-PANEL AND FOUND NOTHING THAT WOULD HAVE CAUSED THE ODOR. NO SUBSEQUENT COMMENTS.