As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT, WITH AUTO THROTTLES ON IN V/S DESCENT AIRSPEED 310 SELECTED. ACFT SLOWED TO 270 INDICATED. TURNED AUTO THROTTLES OFF THEN BACK TO ON AND AUTO THROTTLES WORKED CORRECTLY FOR REST OF FLIGHT THRU LANDING. PERFORMED AUTOTHROTTLE SYSTEM TEST IAW AMM 22-31-00-710-802. NO FAULT SYS CHECKED GOOD. DFCS LRU REPLACEMENT TEST FOR A/T IS GOOD (FIM REF 22 11, TASK 802 BITE GROUP NR 43) HGS GOOD IAW AMM 34-36-00.