As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR SELECTOR HANDLE MOVED TO DOWN. RED UNLOCK LIGHT ILLUMINATED BUT GEAR DID NOT COME DOWN. THREE SECONDS LATER GEAR CAME DOWN. REMOVED DEFECTIVE LANDING CONTROL UNIT AND INSTALLED A REPAIRED CUSTOMER SUPPLIED UNIT. WORK DONE IAW AMM 32-30-01. COMPLIED WITH 4 GEAR SWINGS IAW AMM 32-30-05. OPS CHECKED GOOD.