During the latter stages of a CAT II automatic approach to East Midlands Airport, the aircraft suffered a significant electrical malfunction. This caused the loss of the co-pilot's flight instrument displays and triggered a number of warnings and cautions. The crew executed a go-around and diverted to Birmingham International Airport.
A wiring defect, probably caused by incorrect use of mechanical wire stripping tools at a third-party organisation, was the cause of the electrical malfunction.
Action has been proposed by the equipment manufacturer and has been taken by the third-party maintenance organisation to promote the use of alternative tooling to prevent a reoccurrence.
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