AN AIRBUS A310 MECHANIC DESCRIBES WHY A BLUE HYD SYS LEAKING INBOARD RIGHT WING SPEED BRAKE VALVE WAS NOT RELATED TO A GREEN HYD SYS LEAKING RIGHT AILERON DROOP ACTUATOR.

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ON JUN/XF/08 ACFT DIVERTED DUE TO A LOW LEVEL WARNING OF THE GREEN HYD SYS. ON JUN/XE/08 I RECEIVED TURNOVER FOR A HYD LEAK ON ACFT X. TURNOVER FOUND SPD BRAKE VALVE INBOARD R WING LEAKING. WE CONFIRMED SPD BRAKE VALVE LEAK AND REPLACED SAME PER AMM. FOR TESTING OF SPOILER VALVE; WE USED THE AUX GREEN; YELLOW; AND BLUE SYS. WE FOUND NO LEAKS AND ALL CHKED GOOD. WE WERE FINISHED WITH THE JOB. WE WERE CALLED BACK AT DEP THAT AFTERNOON FOR A HYD LEAK AT THE SAME AREA. WE AGAIN DROPPED THE FLAPS AND REMOVED THE UNDER WING PANELS TO GAIN ACCESS. WE FOUND PUDDLED FLUID AT THE AFT SPAR THAT WAS RUNNING TOWARD THE LNDG GEAR AREA. WE DID ANOTHER LEAK CHK WITH AUX PUMPS; AND EXPANDED OUR SEARCH IN A GREATER AREA IN THE AFT SPAR AND LNDG GEAR AREA. WE DID NOT FIND ANY LEAKS; WE CHKED ALL 3 HYD SYS FLUID LEVELS AND THEY WERE ALL NORMAL. I DEEMED IT WAS RESIDUAL FLUID AND RE-CLEANED THE AREA. ACFT HISTORY SHOWS BLUE HYD SYS FLUID WAS SVCED ON JUN/XA/08 WITH NO OTHER SYS BEING SVCED. THE SPOILER VALVE THAT WAS CHANGED WAS IN THE BLUE SYS. THE GREEN SYS LOW; WAS A RESULT OF A LEAKING R AILERON DROOP ACTUATOR. THE DROOP ACTUATOR IS FURTHER OUTBOARD OF THE SPD BRAKE VALVE AND FORWARD OF THE AFT SPAR. I FEEL THAT THE TWO ARE UNRELATED SINCE THEY ARE 2 DIFFERENT SYS; 2 DIFFERENT AREAS; AND 2 DIFFERENT DAYS.