As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DCA/GSO - FLT 3118 - AFTER TAKEOFF, WHEN GEAR WAS SELECTED UP, THE GEAR RETRACTED, BUT ALL DOOR LIGHTS REMAINED ON. GEAR DOORS REMAINED OPEN. THE AIRCRAFT TURNED BACK TO DCA AND LANDED WITHOUT INCIDENT. PERFORMED PSEU TEST. REMOVED AND REPLACED THE RELAY 3261-K8. TEST FLIGHT SATISFACTORY.