As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HYD SYSTEM FAILED IN FLIGHT. LEFT HYD PRESS WENT TO ZERO WITH INCREASING QTY. QTY BEFORE EVENT 11, AFTER 19. ALTITUDE FL330 AUX PUMP OFF WHEN SPEEDBRAKE APPLIED. RAN ELECTRIC PUMPS, BLEED ALL AIR AND FOAM. RAN ENGINES, BLED ALL AIR AND FOAM AGAIN. SERVICED LEFT AND RIGHT SYSTEMS TO FULL PER M/M. SYSTEM HAS GOOD PRESSURE.