As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, SELECTING TOGA, LT THRUST LEVER DROVE FWD, RT DID NOT. AUTOTHROTTLE DISENGAGED. TRIED TWICE WITH SAME RESULTS ROUTING. ACFT GROUNDED. PERFORMED FIM 22-32 TASK 819 FOUND FAULT CODE 22-31688. FAULT NOT ACTIVE. OPS TEST GOOD IAW AMM 22-31-00. NO HISTORY PAST 30 DAYS.