What was found
HYD B SYS LO PR ELEC PUMP FAULTED AROUNE FL240 CREW REPORTS THIS HAPPENED 20 MINUTES INTO THE FLIGHT. FOUND C/B 123VU AB9 FOR B HYD ELEC PUMP TRIPPED, CLOSED C/B AND PERFORMED OPS TEST OF BLUE HYD SYS WITH ENG 1 & 2 RUNNING, B HYD SYS TEST OK. CHECKED IN PANEL 107VU FOR CONNECTOR 2705GJ, FOUND NO SIGN OF LOSE OR SHORTED WIRING. CHECKED BEHIND PANEL 123VU, CB AB 9, FOUND NO SIGN OF LOSE OR SHORTED CONNECTIONS IN REF TO SSM 29-12-01 SH 1. REMOVED AND REPLACED BLUE ELEC HYD PUMP REF MM 29-12-51. PERFORMED BLEEDING PROCEDURES, PUMP OPERATION AND LEAK CHECK GOOD. ALSO OPERATED BLUE HYD PUMP WITH ENGINES IN OPERATION AND NO DEFECTS NOTED. CIRCUIT BREAKER DID NOT POP ON BOTH TESTS.