As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT FOLLOWING A LOW APPROACH, LANDING GEAR DID NOT RETRACT WHEN GEAR HANDLE WAS RAISED. GEAR HANDLE RETURNED TO THE DOWN POSITION. LANDING GEAR REMAINED DOWN AND LOCKED. AIRCRAFT WAS FLOWN WITH LANDING GEAR EXTENDED AND LANDED UNEVENTFULLY.