What was found
TOTAL LOSS OF SYS A QUANTITY WITH LANDING GEAR DOWN AND FLAPS AT 30 DEGREE QTY WENT TO 1.0 GALLONS FOR TEN SECONDS THEN WENT IMMEDIATELY TO 0 GALLONS SYS A PRESSURE WENT TO ZERO WITH LOW PRESSURE LIGHTS IMMEDIATELY FOLLOWING QUANTITY LOSS. TROUBLESHOT LEAK TO LEFT LANDING GEAR DOOR ACTUATOR. REMOVED AND REPLACED LEFT LANDING DOOR ACTUATOR I/A/W M/M 32-32-081-4. CHANGED 'A' SYS HYD RETURN FILTERS I/A/W M/M 29-11-062- 3. NO CONTAMINATION NOTED. SERVICED 'A' SYS HYD RESERVOIR I/A/W 12-12-000-2. OK FOR SERVICE.