What was found
AFTER LANDING APPLIED BRAKES & FELT LIKE PLAYING WASNT SLOWING LIKE NORMAL. THEN FELT LIKE BRAKE WAS GRABBING THEN FELT IT AGAIN AND A THIRD TIME AGGRESSIVE GRABBING AT A SLOW SPEED. WE WERE ABLE TO TAXI WITHOUT FURTHER INCIDENT. NO AUTOBRAKE ON LANDING & NOTHING ABNORMAL ON DEPT. GROUNDED - YES. PERFORMED FIM TASK 32-42 TASK 816 THROUGH STEP D. NOTICED HYD B READING 106 BUT SIGHT GLASS WAS WITHIN PROPER RANGE. PERFORMED HYD SYS BLEED IAW AMM 29-00-00. TAXIED ACFT. GRABBING CONDITION NO LONGER CONTINUED TO OCCURRED. PILOT REPORTED RT BRAKES WERE GRABBING. R & R NR 3 & 4 BRAKE ASSEMBLIES IAW AMM 32-41-41-401. PERFORMED SLOW SPEED TAXI. BRAKES INTERMITTENT, ABNORMAL FEEL, LIKE NO BRAKING THEN AGGRESSIVE BRAKE ACTUATION DURING TAXI. REF FIM 32-42-816 INSP BRAKE LINKAGE & CABLE ADJUST. NO DEFECTS. REPLACED RT BRAKE METERING VALVE REF AMM 32-41-31. OPS CK GOOD. NO LEAKS. BLED AIR FROM ALL 4 BRAKES IAW AMM 32-41-00B HYD RESERVOIR QTY CORRECTS AFTER ACT CONFIG PER AMM 12-12-00. MAINTENANCE TAXI PERFORMED WITH NO DEFECTS NOTED. OK FOR SERVICE.