What was found
AFTER DEPARTING BQN, SLATS WOULD NOT RETRACT, STALL WARNING AND STICK SHAKER ACTIVATED AT 175 KNOTS. DUMPED APPROXIMATELY 38,000 LBS OF FUEL AND RETURNED TO BQN. AIRCRAFT LANDED NORMAL. CHECKED AND FOUND CODE 71 AND NR 1 PITCH TRIM AND NR 1 AOA SENSOR FAILED. REMOVED AND REPLACED NR 1 AOA SENSOR IAW MM 27-36-15. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)