As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN - PILOTS REPORTED THAT A GEAR UNSAFE LIGHT WAS ILLUMINATED AFTER GEAR RETRACTION AND THEY MANUALLY EXTENDED THE GEAR. MAINTENANCE ADJUSTED THE RIGHT HAND MAIN LANDING GEAR UPLOCK SWITCH FOR MORE COMPRESSION. AN OPERATIONAL CHECK WAS JPERFORMED AND WAS GOOD PER 32-60-00. RII INSPECTION COMPLIED WITH PER GMM 4.3.8.