As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT NR 3955, REPORTED THE NR 1 HYDRAULIC CONTENTS DROPPING ON LANDING. RUDDER ISO VALVE LIGHT ILLUMINATED THEN WENT OUT. FLIGHT LANDED WITHOUT INCIDENT. FLUID WAS NOTED AS LEAKING FROM THE LT FLAP AREA. MAINTENANCE FOUND THE SPOILER LIFT DUMP PRESSURE LINE TO BE CRACKED AND LEAKING. LINE WAS REPLACED AND THE AREA CLEANED AND OPERATIONAL CHECKS CARRIED OUT, ALL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.