As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT FROM KPHL TO KTOL, AFTER GEAR RETRACTION THE DOOR LIGHT REMAIN ON. THE CREW CYCLED THE GEAR AND THE LIGHT REMAINED ON. THE CREW CONTINUED TO KTOL AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND CLEANED UPLATCH SWITCHES AND ADJUSTED DOOR STRIKER. THE OPERATIONAL CHECK WAS GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE IAW DC8 MAINTENANCE MANUAL 32-12-1.