As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/CHS - FLT 6483 - DURING CLIMB AT 0740 HOURS ON 4-4-98, AIRCRAFT MADE AN UNSCHEDULED LANDING AT IAD DUE TO PASSENGER DOOR WARNING LIGHT ILLUMINATED AND ALIGNMENT MARKS OFF. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND CLEANED AND LUBED DOOR LATCH MECHANISM, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)