As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER GEAR RETRACTION WITH ALL GEAR LIGHTS OUT, BETWEEN 140KTS AND 150 KTS WE RECEIVED LT GEAR DOOR AMBER LIGHT, LT GEAR UNSAFE RED LIGHT AND A GEAR DISAGREE LIGHT FOR ABOUT 2 SECONDS. REMOVED/REPLACED LT MLG UPLOCK PROX SENSOR, ALL OPS CHECKS GOOD, BOTH FUNCTIONAL TEST OF MLG PRIMARY EXTENSION/RETRACTION IAW AMM TASK 32-31-00-720-801 AND ALTERNATE EXTENSION OPS TEST IAW AMM TASK 32-34-00-710-801. RETURNED TO SERVICE.