As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A/T WILL NOT STAY ENGAGED. ACFT GROUNDED. A/T BITE SHOWS MSG 22-31688 LOGGED AT FLT 5. PERFORMED FIM 22-32 TASK 819, FOUND ASM 2 FAILED. REMOVED AND REPLACED ASM 2 PER AMM 22-31-91/401. AUTOTHROTTLE SYSTEM TESTED PASSED PER AMM TASK 22-31-00-710-802.