As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON GEAR RETRACTION A FLUTTERING VIBRATION WAS HEARD. NOSE GEAR RED A & B CIRCUITS LIGHTS WERE BOTH ILLUMINATED. CYCLED GEAR DOWN AND RETURNED TO LAND AT SGU. ADJUSTED NOSE LANDING GEAR UPLOCK TARGETS. SWUNG GEAR SEVERAL TIMES IAW MM 32-30-00. OPS CHECK GOOD AT THIS TIME.