As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPEED BRAKE DID NOT DEPLOY ON LANDING WITH SPEED BRAKE ARMED LIGHT ON. MANUALLY WOULD ONLY DEPLOY TO FLIGHT POSITION. REPLACED THE AUTO SPEED BRAKE ACCESSORY MODULE PER MM 27-62-35. CHECKS O.K. THE MODULE WAS ROUTED TO THE SHOP WHERE NO FAULTS WERE FOUND.