As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI OUT, AFTER SELECTING FLAPS 15 DEGREES, THE HYDRAULIC QUANTITY ON THE BLUE SIDE WENT TO ZERO WITH ASSOCIATED LIGHTS. REMOVED AND REPLACED LEFT NACELLE FLAP ACTUATOR IAW RII 27-307 AND 27-50-08. LEAK CHECKS GOOD. NO LEAKS NOTED AT THIS TIME.