As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
After Take off unable to retract landing gear with system 1 or 2. Followed abnormal procedures and returned to airport. Landing normal.Corrective Action: Found L/H MLG pitch dampner at fault. R&R'd dampner I/A/W 32-11-15 Op's check satisfactory. Aircraft returned to service.