As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF WITH THE GEAR HANDLE UP, WE RECEIVED THREE RED GEAR UNSAFE LIGHT, FOLLOWED BY LG AURAL WARNING. THE LIGHTS FLICKERED ON & OFF THE WHOLE FLIGHT. RAN QRH 32.9. INSPECTED LANDING PROXIMITY SENSORS & WIRING. PERFORMED PSEU TEST WITH NO DEFECTS FOUND. R & R PSEU PRECAUTIONARY & SOS PART. WORK PERFORMED IAW AMM 32-60-04. PERFORMED OPERATIONAL TEST OF LG EXTENSION & RETRACTION IAW AMM 32-30-00.