As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/CHS - FLT 6477 - DURING CRUISE AT 1705 HRS ON 8-8-96, MADE AN UNSCHEDULED LANDING DUE TO BOTH AMBER AND RED DOOR WARNING LIGHTS ILLUMINATED IN-FLIGHT. AIRCRAFT RETURNED TO GATE, NO FURTHER INCIDENTS. MAINTENANCE ADJUSTED PASSENGER DOOR MICROSWITCHES. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)