What was found
AUTOPILOT DOES UNCOMMANDED DISENGAGE, WILL NOSE DOWN WITH ATTEMPTED REENGAGE. TRIM NORMAL AFTER DISENGAGE. REPLACED AUTOPILOT PITCH CHANNEL OPS CHECKS GOOD IAW DC8 MM 22-13-1 PN ON 2588789-901 S/N ON 0180236.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AUTOPILOT DOES UNCOMMANDED DISENGAGE, WILL NOSE DOWN WITH ATTEMPTED REENGAGE. TRIM NORMAL AFTER DISENGAGE. REPLACED AUTOPILOT PITCH CHANNEL OPS CHECKS GOOD IAW DC8 MM 22-13-1 PN ON 2588789-901 S/N ON 0180236.