What was found
L HYD QTY EICAS + LHYD SYS PRESS EICAS + RUDDER RATIO EICAS + RT YAW DAMPER EICAS MESSAGES DISPLAYED. HYDRAULIC CONTROL UNIT WAS REPLACED. AIRCRAFT WAS GROUNDED. MAINTENANCE SUSPECTS FAULTY VALVE FOR EICAS MESSAGES.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
L HYD QTY EICAS + LHYD SYS PRESS EICAS + RUDDER RATIO EICAS + RT YAW DAMPER EICAS MESSAGES DISPLAYED. HYDRAULIC CONTROL UNIT WAS REPLACED. AIRCRAFT WAS GROUNDED. MAINTENANCE SUSPECTS FAULTY VALVE FOR EICAS MESSAGES.