As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RED GEAR UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION. DOOR NOT LATCHED LIGHT WAS ILLUMINATED. RECYCLED GEAR TWICE, UPLATCH CHECKED GOOD. PERFORMED ADJUST/TEST OF MAIN LANDING GEAR IAW DC8 MM 32-6. SYSTEM OPS CHECKED GOOD AFTER ADJUSTMENT.