As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD NR 3 HI TEMP FOLLOWED BY HYD NR 3 LO PRESS. QRH COMPLIED WITH. HYD NR 3 PRESS RETURNED TO NORMAL WHEN GEAR EXTENDED ON FINAL APPROACH. TOWER DECLARED AN EMERGENCY TRUCKS ROLLED. REMOVED AND REPLACED PRESSURE MANIFOLD ON HYD NR 3 IAW CRJ-700 AMM 29-10-01. NO HELP. NEEDS MORE TROUBLESHOOTING. [SDR CLOSED](B)