As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START AND TAXI THE A-SYSTEM HYDRAULIC QUANTITY DROPPED FROM FULL TO 2 GALLONS. THE OUTBOARD FLAP DRIVE MOTOR WAS FOUND LEAKING WITH THE ENGINES RUNNING AND FLAPS IN THE DOWN POSITION. REMOVED AND REPLACED THE FLAP DRIVE MOTOR PER MM 27-51-62. OPERATIONS TESTED GOOD WITH NO LEAKS NOTED.