As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START AUTO SPEED BRAKE APPEARED ON EICAS AND AUTO SPD BRK LIGHT ILLUMINATED ON OVERHEAD PANEL. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE DEFERRED THE AUTO SPEEDBRAKE SYSTEM IAW MEL 27-62-1A. MAINTENANCE PROCEDURES COMPLIED WITH. AIRCRAFT RETURNED TO SERVICE.