As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF WE PUT THE GEAR HANDLE UP, ALL LIGHTS WENT OUT EXCEPT LEFT RED ''A''. A VERY LOUD NOISE ALSO REMAINED. WE RECYCLED THE GEAR 4 TIMES AND HAD THE SAME RESULTS. RETURNED TO JAC. ADJUSTED LEFT MAIN GEAR TARGET AND RE-RACKED CANNON PLUG FOR LANDING GEAR DOOR SOLENOID VALVE. SWUNG GEAR 12 TIMES. OPS CHECK GOOD.