As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 STANDBY HYDRAULIC PRESSURE READS ZERO AFTER SWITCH SELECTED TO NR 1. MAINTENANCE REPLACED RELAY 292-K5, NR 1 STANDBY HYDRAULIC PUMP OPERATES NORMALLY AS PER AMM 29-11-17-710-801. CIRCUIT BREAKER REMAINED SET. AIRCRAFT RETURNED TO SERVICE.