As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, CARGO DOOR UNSAFE LIGHT CAME ON AFTER COMPLYING WITH APPLICABLE EMERGENCY CHECKLIST AND THE LIGHT DID NOT EXTINGUISH. RETURNED TO FIELD, LANDED WITHOUT INCIDENT. REPAIRED AND ADJUSTED BENT REAR CARGO DOOR FRAME SWITCH. PRESSURIZED AIRCRAFT TO 6.5 PSI DIFFERENTIAL. NO DEFECTS NOTED.