As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORDERED AND RECEIVED NEW HYDRAULIC FLAP CONTROL VALVE. INSTALLED VALVE AND RAN AIRCRAFT. FOUND FLAPS WOULD ONLY OPERATE INTERMITTENTLY. CHECKED ALL ELECTRICAL CIRCUITS, ALL CHECKED GOOD. RE-INSTALLED OLD VALVE AND FLAPS OPERATED NORMALLY. RE-ORDERED A NEW VALVE. (X)