What was found
ON LANDING ROLL OUT, APPLIED THE BRAKES AT 70 KTS. NO BRAKING ACTION UNTIL BRAKE PEDALS WERE FULLY DEPRESSED. BRAKES GRABBED & IMMEDIATELY RELEASED. OCCURRED THROUGHOUT THE LANDING ROLLOUT & ON TAXI TO THE RAMP. FELT LIKE THE ANTI-SKID SYS WAS RELEASING BRAKE PRESSURE WHEN BRAKES WERE APPLIED. PERFORMED HYD POWER OPS TEST & CYCLED BRAKES SEVERAL TIMES. PERFORMED BRAKE OPS WHILE TAXING, COULD NOT DUPLICATE PROBLEM. BLED BOTH SYS RESERVOIRS TO REMOVE ALL AIR. OPERATED HYD SYS & CYCLED BRAKE SEVERAL TIMES WITH NO DEFECT NOTED. OPS CHECKED GOOD AT THIS TIME. ALL WORK DONE IAW MESSAGE CMP 290005 & RELATED TASKS. COMPLIED WITH ANTI-SKID CONTROL SYS OPS TEST IAW MESSAGE CMP 324204. OPS CHECKED GOOD AT THIS TIME.