As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FUNCTIONAL CHECK FLIGHT, A-SYSTEM HYDRAULICS WAS LOST. UPON LANDING, FOUND THE FLAP DRIVE MOTOR LEAKING AT MOUNT SURFACE. UPON REMOVAL OF FLAP DRIVE MOTOR, FOUND THE SEAL PLATE P/N 176002 S/N 569341 SHEARED AWAY FROM MOTOR DUE TO CORROSION OF INTERNAL WRENCHING RETAINING BOLTS P/N MS24-667-8L. THIS HYDRAULIC MOTOR MANUFACTURED BY MICKERS.