As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 784 - AUTOTHROTTLE SYSTEM WILL NOT STAY ENGAGED WHEN USING AUTOPILOT NR 1 SYSTEM. WORKS NORMALLY IN AUTOPILOT NR 2 POSITION. ALSO ATS WILL NOT ENGAGE AT ALL ON TAKEOFF ROLL WITH A/P IN NR 1 POSITION. GROUND OPS CHECK GOOD IAW 78-03-00 MD-80 MM. (M)