3539 undershoot 539 undershoot at 1410hrs and fault reccurs. From event recorder data, serve 3539 BCP abnormal. Kindly look into it thank you. ~~~~~ 3539 undershoot   3539 FC 308,312,331,332 .Fault able to duplicate ..B1 to coast slow to release .Acu checked no anomalies-OK Replced AC and function checked -OK N.AKUMAR/29.06.21 -------------------------------