As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INBOARD FLAPS WOULD NOT RETRACT AFTER DEPARTURE. INSPECTED FLAP SYSTEM, NO DEFECTS NOTED. LUBED LT AND RT INBOARD FLAP CARRIAGES AND ALL ROLLERS OPS CHECKED OK FOR SERVICE. RELEASED FOR TEST FLIGHT. C/W OVERWEIGHT LANDING INSPECTION FOR LOW TO MODERATE SINK IAW C1-5-51-61 AND 61A. NO DISCREPANCIES WERE NOTED. ACCOMPLISHED TEST FLIGHT. TEST FLIGHT OK.