What was found
AFTER TAKE OFF, CLIMBING THRU 4000 FT, BOTH FLT DIRECTORS FAILED AND THEN THE FIRST OFFICER'S PFD FAILED. DECLARED EMERGENCY AND RETURNED TO FIELD, LANDED WITHOUT INCIDENT
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER TAKE OFF, CLIMBING THRU 4000 FT, BOTH FLT DIRECTORS FAILED AND THEN THE FIRST OFFICER'S PFD FAILED. DECLARED EMERGENCY AND RETURNED TO FIELD, LANDED WITHOUT INCIDENT