What was found
MDIS 297 34-61 3894 08FEB20 MEM FACT U PER CREW VERBAL: DURING APPROACH A/C FULLY CONFIGURED FLAPS 30, VREF FOR THE LANDING WEIGHT OF 302.3 WAS COMPUTING 141 KTS. AT THIS AIRSPEED THE STALL ZIPPER WAS ABOVE THE VREF SPEED APPROXIMATELY 7-8 KNOTS. THE HUD ANGLE OF ATTACK INDICATED NORMAL FOR THE APPROACH CONFIGURATION AT THE 3 O'CLOCK POSITION SHGN 08FEB20 18:31 MEM U ERS 20-00527 SUBMITTED. SHGN 09FEB20 08:23 MEM U PERFORMED TEST 64 AND 66 AS REQUESTED, NO FAULTS NOTED. ALL FLAP TRANSMITTER AND POSITION READINGS NORMAL AT ALL FLAP POSITIONS. PERFORMED STALL WARNING OPERATIONAL TEST IAW 767 MM 27-32-00-5 WITH NORMAL RESULTS AND NO FAULTS. ALSO NO FLIGHT FAULTS LOGGED. SHGN 09FEB20 22:01 MEM U PERFORMED ANGLE OF ATTACK SENSOR TEST ON LEFT AND RIGHT AOA'S REF 767 AMM 34-12-03-4. ALL VALUES WITHIN LIMITS. PERFORMED WIRING CHECKS AND VERIFIED SLAT INPUTS TO THE FSEU AND PSEU AS REQUESTED BY BOEING (ERS# 20-00527) AND ALL VALUES ARE WITHIN SPEC PER BOEING FIGURES. SUSPECT THIS TO BE A NUISANCE FAULT AS SPELLED OUT IN 767 AMM CHAPTER 27- 32-00-0-2 PARAGRAPH 2 SUBPARAGRAPH C (7) . PERFORMED CIRCUIT BREAKER RESET ON WEU A/B AND OPERATIONAL CHECKS OF WEU GOOD REFERENCING 767 AMM 31-51-04, PERFORMED STALL WARNING OPERATIONAL TEST IAW 767 MM 27-32-00-5 WITH NORMAL RESULTS AS WELL. NO PRIOR HISTORY OF ANY KIND , AIRCRAFT OK FOR SERVICE.