As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/JFK - FLT 6485 - DURING CLIMB AT 1400 HOURS ON 12-25-95, LT ALTIMETER FAILED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED DADC SWITCHING RELAY, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)