As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SELECTED GEAR DOWN, DOORS OPENED BUT LANDING GEAR DID NOT EXTEND. CYCLED GEAR HANDLE AND LANDING GEAR CAME DOWN NORMALLY NO FURTHER PROBLEMS. (FLT 6233) PERFORMED 10 GEAR SWINGS AND COULD NOT DUPLICATE DISCREPANCY. CLEANED ALL GEAR SEQUENCE VALVES AND REPLACED LDG CONTROL HANDLE MODULE IAW AMM. P/N-120-38594-001 S/N ON-120153 P/N OFF-120-38594-501 S/N OFF-120343