As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SELECTING GEAR UP A-SYSTEM LEFT MAIN GREEN LIGHT REMAIN ILLUMINATED. SELECTED GEAR DOWN AND HAD ALL RED LIGHTS ILLUMINATED EXCEPT A-LIGHT LEFT MAIN WHILE GREEN A-LIGHT LEFT MAIN REMAIN ILLUMINATED. PERFORMED MANUAL EXTENSION BY ELECTRICAL MEANS. REMOVED AND REPLACED LEFT A DOWN LOCK PROXIMITY SENSOR, IAW MM 32-61-01. SWUNG GEAR, OPS CHECKS GOOD.