As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPEED BRAKES EXT EICAS MESSAGE DISPLAYED WITH SPEED BRAKES STOWED SPEED BRAKES LIGHT ILLUMINATED. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REMOVED AND REPLACED 2L CSEU P/S B767 AMM 27-09-00. AIRCRAFT RETURNED TO SERVICE.