ACFT CONFIGN REQUIRES DIVERSION TO ALTERNATE ARPT DUE TO HIGHER APCH SPD REQUIREMENTS. ACFT EQUIP PROB MALFUNCTION.

Narrative

AT ABOUT 5000 FT AFTER TKOF; A TOTAL SYS 'A' HYD FAILURE OCCURRED. WE FOLLOWED THE IMMEDIATE ACTION ITEMS ON OUR EMER PROC CHKLIST AND FOLLOWED UP WITH THE ABNORMALS. WE NOTIFIED ATC THAT WE WERE DECLARING AN EMER AND WANTED TO RETURN TO LAND AT SAN ANTONIO ARPT. WE ASKED FOR EXTRA TIME TO COMPLETE THE RATHER EXTENSIVE ABNORMAL CHKLIST. WE CIRCLED AT ABOUT 3000 FT E OF THE SAN ANTONIO ARPT. WE CALLED FLT CTL TO LET THEM KNOW OF OUR PROB. WE LOWERED THE GEAR AND FLAPS BY THE ALTERNATE METHOD ACCORDING TO THE CHKLIST. AFTER WAITING AN ADEQUATE AMOUNT OF TIME; ALL OF THE LEADING EDGE DEVICES DID NOT INDICATE LOCKED INTO PLACE. WE NOTICED THAT WE HAD TO USE A LOT OF L CTL WHEEL DISPLACEMENT TO KEEP THE WINGS LEVEL WHICH ALSO CONFIRMED TO US THAT THE LEADING EDGE DEVICES WHERE ASYMMETRIC IN THEIR EXTENSION. WE ACCOMPLISHED THE ABNORMAL FOR LEADING EDGE DEVICE NOT FULLY EXTENDED UPON EXTENSION AND REALIZED WE NEEDED TO ADD ANOTHER 30 KTS TO OUR ALREADY HIGH APCH SPD OF 149 KTS. WE THOUGHT ABOUT GOING TO THE DALLAS FORT WORTH ARPT BECAUSE OF THE LONGER RWY; BUT AFTER TALKING TO FLT CTL AND ESTIMATING THAT OUR FUEL WOULD BE ABOUT 5000 LBS UPON ARR; WE ELECTED TO GO INTO KELLY AIR FORCE BASE. WE LANDED AT KELLY WITH AN APCH SPD OF 179 KTS AND MADE A SMOOTH TOUCHDOWN AND HAD NO PROB KEEPING THE ACFT STRAIGHT WITH LIGHT DIFFERENTIAL BRAKING. WE HAD TO BE TOWED FROM THE RWY AS WE HAD NO NOSEWHEEL STEERING.