As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DCA FLT 1575. DURING GEAR EXTENSION, CREW REPORTED THE LANDING GEAR LEVER WON'T STAY COMPLETELY IN AND WILL GIVE 3 GEAR UNSAFE LIGHT INDICATIONS. CREW ACCOMPLISHED FLY-BY TO VERIFY GEAR WAS DOWN. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR CONTROL LEVER ASSEMBLY PER MM 32-31-11. OPERATIONAL CHECK NORMAL.