As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ALL 3 GEAR LIGHTS FAILED TO ILLUMINATE ON GEAR DOWN SELECTION AND GEAR LIGHTS FAILED TO TEST WHEN TESTED IN FLIGHT. AFTER 2 GEAR CYCLES AND WHEN INDICATOR BOX TAPPED ALL 3 LIGHTS ILLUMINATED AND ACFT LANDED UNEVENTFULLY. SYS INSPECTED AND A BROKEN WIRE WAS FOUND INSIDE GEAR INDICATOR BOX THAT CAUSED THE LIGHTS TO NOT ILLUMINATE OR TEST.