As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/JFK - FLT 6529 - DURING CRUISE AT 0930 HRS ON 11-16-95, THE LT ADC SOURCE AND LT AHRS SOURCE FAILED IN-FLIGHT. FLIGHT CREW SWITCHED BOTH TO RT SOURCE TO REGAIN ADC AND AHRS. AIRCRAFT WAS FERRIED TO IAD AND LT AHRS WAS REPLACED. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)