As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3254 - DCA-ORF - ON APPROACH INTO DCA, THE LEFT MAIN GEAR WOULD NOT EXTEND UNTIL THE NOSE AND RIGHT MAIN WERE FULLY EXTENDED. THE AIRCRAFT LANDED IN DCA WITHOUT INCIDENT. REMOVED AND REPLACED THE LOCK ACTUATOR AND LOWER DRAG STRUT. REFERENCE HNAA9690542.