As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT TOP OF DESCENT RECEIVED A LEVEL ONE HYD 3 ELEVATOR OFF ALERT. FLUID DECREASED TO 1.2 AT SHUTDOWN. USED NORMAL GEAR EXTENSION, NORMAL TAXI IN AND NORMAL HYDRAULIC TEMPERTURE OF 37 DEGREES C. FOUND O-RING EXTENDED OUT OF NR 3 STABILIZER TRIM CONTROL UPPER MODULE PRESSURE LINE. R & R PRIMARY TRIM CONTROL VALVE. OPS AND LEAK CHECKS GOOD.