As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FLAPS WOULD NOT RETRACT. THERE WAS A DISAGREEMENT BETWEEN OUTBD NACELLE AND INBOARD FLAPS. FAULT CLEARED AFTER LANDING. INSPECTED OUTBD FLAPS. CLEANED AND LUBRICATED ROLLERS. CYCLED FLAPS SEVERAL TIMES. OPS CHECKS GOOD. SEE FL 75711 FOR MECH SIGN OFF.