As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MLG DOOR LIGHT REMAINED ILLUMINATED WITH 3 DOWN AND GREEN CYCLED GEAR AND PROBLEM REPEATED BUT LIGHT WENT OUT AFTER 10 SECONDS. RUN UP ON ELEVATOR TO PUT DOWN LOAD ON AIRCRAFT EXTINGUISHED GEAR DOOR LIGHT. REMOVED AND REPLACED LEFT GEAR UP LATCH PROX SENSOR (S233 IAW AMM. OPS CHECKED OK.