What was found
FUMES IN THE COCKPIT, SMELLED LIKE RUBBER BURNING, NO SMOKE. WENT MAX BRIGHT ON ALL FLT DECK RHEOSTATS AND COURIER AREA LIGHTS WITH NO ODORS OR DEFECTS NOTED. OPENED SEVERAL FLT DECK, COURIER, AND ELEX BAY PANELS, NO ODORS OR DEFECTS NOTED. RAN ALL ENGINES IAW JRH. ISOLATED AND CONFIGURED PNEUMATICS AND PACKS IAW MM 21-53-00-7. NO ODORS OR DISCREPANCIES NOTED. OK FOR SERVICE.