As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN CREW SELECTED GEAR DOWN, NO GREEN LIGHT INDICATION, THEY GOT UNSAFE AND DOOR LIGHT INDICATION ON LT SIDE, GO AROUND, RECYCLING WITH SAME RESULT. ALTERNATE GEAR EXTENSION ACCORDING TO QRH WITH SUCCESSFUL RESULT. LANDING WAS NORMAL. PSEU CHECKED FOR FAULTS. LGD LK1 FAULT FOUND. LT GEAR DOWNLOCK HARNESS REPLACED IAW AMM 32-61-06. OPERATIONAL TEST PERFORMED.