As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT MECHANICS TAXIED A/C TO HANGAR FROM GATE AND FELT A BRAKE DRAGGING. A/C WAS JACKED AND THE LEFT INBD BRAKE WAS FOUND TO BE DRAGGING. AFTER THE BRAKE WAS REMOVED, IT WAS DISCOVERED THAT ONE OF THE RETURN SPRING ASSEMBLIES "PIN" WAS BROKEN AT END THAT ATTACHES TO THE PRESSURE PLATE. REMOVED BRAKE ASSEMBLY AND INSTALLED SERVICEABLE BRAKE ASSEMBLY I/A/W EMB-120 MM 32-41-05 P401-404.