As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#687, BOX-LAX. (ETOPS) 'DURING PREFLIGHT ENGINE 1 GREEN HYD SHOWS GREEN LINE ABOVE SHUT OFF AND NO LOW PRESSURE INDICATION. (ENGINE-DRIVEN PUMP SYS - DEPRESS FUNC); REPLACED LEFT ENG PUMP PRESS SWITCH 1075GK PER AMM 29-11-17 AND REPLACED C/P FOR PRESS SWITCH PER AMM 20-53-33. CHECK SYSTEM OK PER AMM 29-11-17. CLEARED MEL AND MDDR.'