What was found
FLT # 640, CLE-BOS. EMERGENCY DECLARED. AFTER LOWERING THE LANDING GEAR ON APPROACH, WE GOT A STEER FAIL EICAS MESSAGE NO STEERING ON THE GROUND,; R/R STEERING CONTROL MODULE IAW AMM 35-53-01 & ACCOMPLISHED STEERING FEEDBACK SENSOR ADJUSTMENT (ON GROUND) IAW AMM 32-53-09.OK FOR SERVICE.