As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON CLIMBOUT OF SJC, UNSAFE GEAR LIGHT ILLUMINATED DURING UPLATCH CHECK. LEFT LANDING GEAR NOT LATCHED WAS INDICATED. RECYCLED GEAR 3 TIMES, SAME RESULT. PERFORMED ALTERNATE UPLATCH CHECK AND ALL GEAR AND DOOR INDICATIONS SHOWED LATCHED. LUBED LEFT GEAR UPLATCH ASSY. SWUNG GEAR AND OPS CHECKED GOOD IAW DC 8 MM CHAPTER 32.