As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING APPROACH TO BASE, NR 1 HYD ISO VLV AND NR 1 ENG HYD PUMP CAUTION LIGHT ILLUMINATED. NR 1 SYSTEM PRESSURE 0 PSI. STBY PRESS NORMAL AFTER SPU SELECTED ON. EMERGENCY LANDING DECLARED. AIRCRAFT STOPPED ON RUNWAY AND WAS TOWED IN. NR1 PROP COULD NOT BE ROTATED BY HAND. METAL FOUND IN CASE DRAIN AND PRESSURE FILTERS. REPLACED NR 1 EDP.