As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 RUDDER HYD CAUTION ILLUMINATED. RETURNED TO FIELD. LANDING UNEVENTFUL. R & R NR 1 RUDDER SHUTOFF VALVE IAW AMM TASKS 27-21-28-000-801 AND 27-21-28-400-801. OPS CHECK GOOD. NO LEAKS NOTED. NR 1 HYD CAUTION LIGHT DID NOT RETURN. RETURNED TO SERVICE.