As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, UPON SELECTING GEAR DOWN NEITHER LT OR RT MAIN GEAR WERE DOWN AND LOCKED WITH HYD 3 LOW PRESS CAUTION ILLUMINATED. 5 MINS LATER AFTER EXECUTING MISSED APPROACH, MAIN GEAR SHOWED DOWN AND LOCKED. QRH PROCEDURES TO A LANDING. (EMERGENCY DECLARED)