As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT HYD QTY EICAS MESSAGE IN FLIGHT, FOLLOWED BY RT HYD ENGINE PUMP EICAS MESSAGE, FOLLOWED BY RT HYD SYS PRESS MESSAGE. EMERGENCY DECLARED. CHECKED BOTH ANTI-SKID SHUTTLE IAW AMM: 29-11-24-4. REMOVED RT HYD RESERVOIR PRESSURE RELIEF VALVE IAW MM 29-11-24-4, AMM: 32-42-07-4. REMOVED LT AND RT ANTISKID SHUTTLE VALVES MODULES IAW AMM 32-42-07-4. AMM 32-41-03-4-2. R & R RT BRAKE METERING VALVE IAW MM 32-41-03-4-2.