What was found
PRIOR TO PUSHBACK, DETECTED A BURNING ELECTRICAL ODOR, NOTED EQUIPMENT COOLING OVERHEAT ON OVERHEAD PANEL ILLUMINATED AND FWD EQ SUP FAN 1 EICAS MESSAGE ILLUMINATED. FOUND FWD EQ SUP FAN 1 NOT ROTATING AND CIRCUIT BREAKER H18 ON P6-3 IS TRIPPING WITH CONNECTOR REMOVED FROM SUP FAN 1 C/B H18 STAYS IN. CONFIRMED FWD EQUIPTMENT COOLING SUPPLY FAN WAS THE CAUSE OF THE BURNING ODOR. PULLED AND SECURED C/B H18, EIN C331, ON THE P6-3 PANEL IAW ERA 523888-14 AND MEL 21-58-03. NO FURTHER BURNING ODOR NOTED. R & R FWD EQUIPMENT COOLING FAN IAW AMM 21-58.