As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON DEPARTURE FROM FFZ FLAPS WERE SET TO 0. FLAPS FAIL AMBER CAS ILLUMINATED FLAPS STILL SHOWED 20. FOLLOWED CHECKLIST SEND QRC FLAPS WOULD STILL NOT RETRACT ON GROUND. REMOVED FLAP CONTROL UNIT. INSTALLED FLAP CONTROL UNIT IAW AMM 27-51-04 OPERATIONAL TEST OF THE FLAP CONTROL UNIT REQUIRED. PERFORMED OPERATIONAL TEST ON THE FLAP CONTROL UNIT IAW AMM 27-51-04. OPERATIONAL TEST SATISFACTORY..