As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HYD SYSTEM PRESS LIGHT & EICAS MSG NOT ON WITH PUMP OFF. REPLACED LT HYD SYS LOW PRESSURE LIGHT ASSY, NO HELP. EICAS MESSAGE OK WHEN HYD SWITCH TURNED OFF LIGHT IS INTERMITTENT. REPLACED LEFT SYS PRESSURE SWITCH. OPS CHECKED GOOD.