As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH AND RH OUTBOARD FLAP FLEX SHAFT RUBBER CASE FAILING AT THE CRIMP UNDER STAINLESS STEEL OUTER WRAP. THIS SEPARATION ALLOWS THE OUTER CASE TO LENGTHEN AND THE INNER DRIVE SHAFT CAN SLIDE LEFT AND RIGHT TO THE POINT THE DRIVE COMES OUT OF THE JACKSCREW CAUSING THE FLAP TO TWIST.