As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE VISIT: TEST PILOT REPORTS ALTERNATE FLAPS FAILED IN-FLIGHT TEST, DURING EXTENSION FLAPS STOPPED AT FLAPS 30 DEGREES AND WERE VERY SLOW TO EXTEND TO FLAPS 30 DEGRESS. MAINTENANCE INSTALLED SERVICABLE FLAP ELECTRIC MOTOR, PREFORMED OPS CHECK IAW AMM 27-51-53.