What was found
ON CLIMBOUT FROM HOU TO CVG, COMPLETE LOSS OF SYSTEM NR 3 HYD FLUID. EMERGENCY DECLARED, A/C DIVERTED TO IAH, LANDED SAFELY. INSPECTED A/C, FOUND LEAKING FITTING ON NR 3 HYD PRESSURE MANIFOLD. REMOVED AND REPLACED O-RING ON PRESSURE MANIFOLD. OPS CHECK GOOD, NO LEAKS NOTED.