As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FL230 LOST RIGHT HYD QTY QTY DOWN TO 4 QTS. SHUT OFF RT HYD ENG PUMP PER CKLIST. QTY REMAINED CONSTANT AT 4 QTS UNTIL PUMP WAS TURNED ON IN PREP FOR LANDING. QTY THEN DECREASED TO 1 QT. MAINTENANCE NOTED HYD FLUID UNDER AIRCRAFT. APU NOT STARTED PER CREW CKLIST. ALSO NO LOW PRESSURE INDICATION FOR HYD. INSTALLED TEMP LINE ON RT SYS PRESS TRANS. LEAK CK'D GOOD. OK FOR 350 HRS PER M/M 20/12/09. INSP AFTER 175 FLT HOURS.