What was found
IAD - FLT 30 - MADE UNSCHEDULED LANDING DUE TO LT HYDRAULIC SYSTEM PRESSURE AND QUANTITY LOSS. DECLARED AN EMERGENCY. REPLACED THE SPOILER SHUT OFF VALVE ON LT SIDE, MFG P/N 147425-3, AND THE LT POWER TRANSFER SHUT OFF VALVE MFG P/N 240695-2. CHECK-C 2-16-98 STL. (X)