As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PARKED ON TAXIWAY, CA & FO BOTH NOTICED SMELL OF BURNING PAPER. OCCURRED SEVERAL OCCASIONS. PERFORMED A VISUAL INSPECTION OF BOTH ENGINES IAW AMM 71-00-00 NO DEFECTS NOTED. PERFORMED INSPECTION AND OPERATIONAL CHECK OF SYSTEMS IAW FIM 21-20-00 NO DEFECTS NOTED.