As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 7578, IAD-ABE, PILOT CALLED ON THE RADIO SHORTLY AFTER TAKEOFF REPORTING AN AUTO TRIM LIGHT WARNING WITH YAW DAMPER ENGAGED. PILOT REPORTED YAW TRIM WAS 4 UNITS TO THE RIGHT AND 1/2 UNIT AILERON TRIM. AIRCRAFT RETURNED TO FIELD.