As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DECLARED EMERGENCY……………….DURING GEAR EXTENSION FOR LANDING, THE LEFT MAIN RED LIGHT REMAINED ON & NO GREEN LIGHT. NOSE & RIGHT MAIN WERE GREEN. AFTER MANUAL GEAR EXTENSION RED LIGHT REMAINED ON.. INSTALLED LEFT MAIN GEAR DOWNLOCK PIN FOR ONE TIME FERRY FLIGHT TO HOU. R&R LH MLG FWD TRUNION BEARING PER MM.