As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED DOOR NOT LATCHED LIGHT ON AFTER GEAR RETRACTED - CHECK LIST ACCOMPLISHED: LIGHT EXTINGUISHED AFTER 4 CYCLES. INSPECTED DOOR LATCH MECHANISMS AND SWITCHES. LUBED BOTH GEAR DOOR LATCH MECHANISMS, TESTED O.K. I.A.W. DC-8-M/M 32-31-04.