As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT WE DEPLOYED THE SPEED BRAKES & NOTICED AN INITIAL 4 - 5 DEGREE RIGHT BANK TURN, WHICH WAS THEN COMPENSATED BY THE AUTOPILOT. ONCE THE SPEED BRAKES WERE STOWED THE ACFT WOULD AGAIN FLY STRAIGHT. OPERATIONS CHECKED SPOILER OPERATION IAW AMM 27-60-00. NO DEFECTS FOUND.