As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF GEAR DOOR LIGHT ILLUMINATED. AIRCRAFT PERFORMED AIR RETURN. FOUND FOLLOW UP LINKAGE FOR MANUAL RELEASE OF NOSE GEAR DOORS STICKING. CLEANED AND LUBED SAME. CYCLED DOORS MANUALLY SEVERAL TIMES. JACKED NOSE GEAR AND PERFORMED NOSE GEAR EXTENTION/RETRACTION SWING SEVERAL TIMES. ALL OPS CHECKED NORMAL.