As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK/DECLARED EMERGENCY, STICK SHAKER ACTIVATED DURING TAKEOFF ROTATION AIRBORNE AT VR-FLAPS 5Ï¿½ STALL WARNING LOGIC EXCESSIVELY HIGH THROUGHOUT FLIGHT. DURING APPROACH A FLAPS 40Ï¿½ YELLOW STALL STICK SHAKER BAND WAS 1 KNOT BELOW CALCULATED V REF SPEED LANDING WEIGHT 128.0 PER INDICATIONS. R&R FLAP SLAT ELECTRONIC UNIT PER AMM.