As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT LANDING GEARS A AND B RED AND A AND B GREEN REMAINED ILLUMINATED AFTER LANDING GEAR LEVER WAS RETRACTED. ALSO FELT VIBRATION COMING FROM LEFT SIDE OF AIRCRAFT. ALL LIGHTS NORMAL WHEN LEVER WAS IN DOWN POSITION. PERFORMED SEVERAL GEAR SWINGS WITH NO PROBLEMS FOUND. ALL WORK PERFORMED IAW EMB MM CHAPTER 32. UNABLE TO DUPLICATE DISCREPANCY.