As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT CAPTAINS EHSI FAILED. MULTIPLE FLAGS COMPUTER FLAGS HDG INT. CREW RETURNED AIRCRAFT TO DEPARTURE AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED CAPT'S VG AND DG AND REPLACED WITH LTR-97 UNIT IAW APPLICABLE MM. THE OPERATIONAL CHECK GOOD AND THE AIRCRAFT RETURNED TO SERVICE.