What was found
INFLIGHT, HYDRAULIC SYSTEM NR 1 QUANTITY DOWN TO 34 PERCENT. AIRCRAFT DIVERTED TO EWR. TROUBLE SHOOTING, FOUND NR 1 SYSTEM LEAKING AT T-FITTING MLG HYDRAULIC TUNNEL. REMOVED AND REPLACED T-FITTING, SERVICED AND LEAKED CHECKED SYSTEM, AND PRESSURE TESTED FITTING ALL IAW F-100 AMM CHPS 12-21-01, 29-00-00.