What was found
COMPLETE LOSS OF BLUE SYSTEM HYDRAULICS AT SBP, COMPLIED WITH QRH. RETURNED TO LAX AND LANDED FLAPS 0 DEGREES. INSPECTED AND FOUND T6 CAP SCREWS OF RIGHT NACELLE ACTUATOR LOCK PIN SOLENOID SHEARED OFF. INSTALLED SERVICEABLE RIGHT NACELLE FLAP ACTUATOR IAW MM 27-50-00, SEE RII 27-307. CYCLED FLAPS NUMEROUS TIMES, OPS CHECKS GOOD. NO LEAKS NOTED.