As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RUDDER SERVO HYDRAULIC LINES CHAFING EACH OTHER CAUSING LEAK. THIS HAS BEEN NOTICED ON F10, S/N 162, ALSO. S/N 131 HAD HOLE WORN INTO HARD LINE P/N F10A755401 FROM BRAIDED LINE, P/N 000AE90-4-0232. BRAIDED LINE NEEDS TO BE REPOSITIONED AND POSSIBLY SOME TYPE OF CHAFE PROTCTION ADDED.