As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BTM - ON FLIGHT 2381, RETURNED TO GATE, WHEN TAXING OUT THE NR 3 HYDRAULIC PUMP CAUTION LIGHT ILLUMINATED. MAINTENANCE CLEANED PL-4 RELAY CONTACTS AFTER REMOVING. REINSTALLED RELAY, COMPLIED WITH PRESSURIZATION CHECK OF THE NR 3 HYDRAULIC SYSTEM. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.