As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT HYD SYS EICAS MESSAGE DURING DESCENT. EMERGENCY DECLARED, RAN QRH PROCEDURE. NO OTHER PROBLEMS NOTED. RT HYD QTY STAYED AT .94. DIDN'T OBSERVE ANY OVERHEAD HYD PRESSURE LIGHTS. HYD MAINT PAGE SHOWS RT HYD SYS PRESSURE AUTO EVENT. CREW REPORTED NO OTHER INDICATIONS OF RT HYDRAULIC PRESSURE LOSS AND RT HYD SYS PRESSURE OK AFTER BLOCK IN. R & R RT HYD SYS PRESSURE TRANSMITTER IAW FIM 29-11-00, AMM 29-31-01-401.