What was found
1) IN FLIGHT, HYDRAULIC SYSTEM "A" DECREASED TO 0.2. ENGINE #1 LOW PRESSURE LIGHT ILLUMINATED INTERMITTENTLY. PERFORMED ABNORMAL PROCEDURES. "A" HYDRAULIC SYSTEM FLUID SHUTOFF SWITCHED CLOSED FOR 7 MINUTES. (NOTE: DHL INSPECTION AND SURVEILLANCE REPORT DATED 10-02-2002 STATES THAT AN EMERGENCY WAS DECLARED.)2) FOUND LOWER RUDDER SOLENOID VALVE LEAKING, REPLACED SOLENOID VALVE & GASKET - NO FURTHER LEAKS NOTED. RUDDER PCU OPS CHECKED GOOD IAW DHL M/M 27-20-141. SERVICED "A" SYSTEM HYDRAULICS & RAN ENGINES - NO HYDRAULIC LEAKS NOTED. RESET "A" SYSTEM SWITCHES TO OPEN, SYSTEM OPS CHECKED NORMAL IAW DHL M/M 29-11-0.3) MANUAL LANDING GEAR EXTENSION PERFORMED.4) TESTED GEAR MANUAL EXTENSION SYSTEM PER