What was found
AIRCRAFT PULLS RT WHILE TAXIING BOTH RT BRAKES REACHED 550 AFTER BLOCK IN BUT LT BRAKES ONLY 230. JACKED RT GEAR OPERATED BRAKE PEDALS SET & RELEASED PARKING BRAKE WHEELS SPIN FREELY. CHECKED NOSE WHEEL ALIGNMENT IAW AMM 32-51-00. ALIGNMENT GOOD. PERFORMED BITE OF BSCU IAW AMM 32-46-00. NO FAULTS PRESENT. TEST OF BSCU CH 1 & 2 LRU WIRING & BSCU TEST & NORMAL BRAKING TEST ALL HAD NO FAULTS. TAXIED ACFT TO GRE & BACK A/C DRIFS TO THE RT. LT BRAKE TEMPS 190 AND 205 RT GEAR BRAKE TEMP 150 & 175. PERFORMED ADJUSTMENT OF FEEDBACK SENSORS 3GC & 4GC IAW AMM 32-51-00-820-002-A. NOW WITHIN LIMITS ACFT STILL NEEDS DOWNJACKING & TAXI CHECK & BITE TEST OF BSCU. ACFT DOWNJACKED. LANDING GEAR PINS REMOVED. TAXI CHECK GOOD & BITE TEST OF BSCU GOOD IAW AMM 32-46. OK FOR SVC. (LP: 9600162, AIRCRAFT WAS GROUNDED)