As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 0334 - IAH - THE LEFT MLG RED AND GREEN LIGHTS ON THE FORWARD PANEL REMAINED ILLUMINATED AFTER TAKEOFF. THE GEAR WAS CYCLED, BUT THE LIGHTS REMAINED ON WITH THE SECOND OFFICERS PANEL INDICATING NORMAL. A VISUAL INSPECTION FOUND THE GEAR RETRACTED. MAINTENANCE FOUND THE LANDING GEAR ACCESSORY UNIT AT FAULT. THE LG ACCESSORY UNIT WAS REPLACED AND OPERATION OF THE UNIT CHECKED GOOD. (M)