As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7214 - IAD-HPN - DURING CLIMB, AIRCRAFT MADE A UNSCHEDULED LANDING DUE TO PASSENGER DOOR WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND SHIMMED LOCK INDICATOR ASSEMBLY, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)