What was found
WHILE REPLACING L/E WEBS IN HINGE AREA, NOTED FITTING (SUPPORT WAS CRACKED IN AREAS OF FASTENER HOLES. POSSIBLE CAUSE, SHOOTING 'D' RIVETS IN MAGNESIUM SUPPORT. RECOMMEND USING 'B' RIVETS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE REPLACING L/E WEBS IN HINGE AREA, NOTED FITTING (SUPPORT WAS CRACKED IN AREAS OF FASTENER HOLES. POSSIBLE CAUSE, SHOOTING 'D' RIVETS IN MAGNESIUM SUPPORT. RECOMMEND USING 'B' RIVETS.