What was found
DURING PHASE INSPECTION, PRIMARY AILERON CABLE IN EACH WING WAS FOUND FRAYED AT PULLEY. PULLEY LOCATION IN EACH WING IS LOCATED JUST INBOARD OF MLG, AND CAN EASILY BE SEEN THROUGH EXISTING INSPECTION HOLE. BOTH CABLES HAD TO BE REPLACED. IT APPEARS CABLE IS TOO SOFT AND IS BEING WORN BY PULLEY AT THE AILERONS' NEUTRAL POSITION. PLEASE NOTE THAT A FLEET OF 17 PA28-161'S ARE MAINTAINED BY THIS REPAIR STATION, AND THAT AT APPROX 7,000 HOURS, ENTIRE FLEET IS ENCOUNTERING THIS PROBLEM. SIMILAR PROBLEMS SHOW UP ON STABILATOR AND FLAP CABLES, SOME SEVERE.