As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A-AUTOPILOT WILL ONLY ENGAGE FOR ABOUT 5 SECONDS. IT APPEARS THAT THE ASSOCIATED AUTOPILOT TRIM IS NOT WORKING. B-AUTOPILOT WORKS NORMALLY. ACFT GROUNDED. DFCS BITE T/S INDICATED HYDRAULIC PRESSURE SWITCH -1 FAILURE. R & R SAME. OPS GOOD, REF AMM 22-11-40.