As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KPHX/KDFW - FLT 298 - THE MLG DOOR NOT LATCHED LIGHT REMAINED ON AFTER GEAR RETRACTION. THE FLIGHT CREW RECYCLED THE LANDING GEAR AND THE LIGHT DID NOT EXTINGUISH. MAINTENANCE CLEANED AND LUBED THE RT UPLATCH MECHANISM. AN OPERATIONAL CHECK OF THE LANDING GEAR WARNING SYSTEM WAS GOOD.