What was found
COCKPIT ODOR. HOLDING SHORT OF THE RUNWAY BOTH PILOTS SMELLED A STRANGE POTENT SMELL. THE SMELL WAS STRONGER FROM THE RIGHT SIDE OF THE COCKPIT AND SMELLED LIKE PLASTIC WAS BURNING. THERE WAS NO SIGN OF SMOKE. PERFORMED FIM 21-20-00-810-801-A TO CHECK FOR ANY ABNORMAL SMELL IN THE CABIN OR COCKPIT. COMPLETED IAW FIM 21-20-00-810-801-A. NO DEFECTS OR ABNORMAL SMELLS DETECTED WITH EITHER ENGINE RUNNING OR THE VCS ON.