As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FCF RT MLG RED UNSAFE LIGHT ILLUMINATED AT 30,000 DURING CLIMB. PERFORMED QUICK REFERENCE HANDBOOK 14.8 PROCEDURE. AFTER THIS PROCEDURE THEN HAD A GEAR DOOR OPEN LIGHT ILLUMINATED. QUICK REFERENCE HANDBOOK 14.7. EMERGENCY LANDING WAS DECLARED AND A SAFE LANDING WAS ACCOMPLISHED. REMOVED AND REPLACED RT MLG DOOR AND PERFORMED ADJUSTMENTS AND OPS CHECKS PER DELTA OPN AND AMM.