As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN GEAR WOULD NOT RETRACT, RETURN TO FIELD. ADJUSTED LT MLG ACTUATING CYLINDER AT MLG ATTACH POINT FOR CORRECT UPLOCK HOOK GAP IAW AMM. OPS CHECKS NORMAL DURING GEAR SWINGS ON JACKS. ALSO COMPLIED WITH EMERGENCY GEAR FREE FALL OPS CHECKS, NO DEFECTS NOTED.