What was found
WHILE REPLACING THE SKIN ON THE OUTBOARD SIDE OF THE LEFT AILERON, THE CENTER RIB WAS FOUND CRACKED IN THE FORWARD ATTACH FLANGE. THIS AREA IS RIGHT BEHIND THE ACTUATING PUSH ROD. BOLTS WERE TIGHT. TOTALLY INACCESSIBLE TO VIEW.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE REPLACING THE SKIN ON THE OUTBOARD SIDE OF THE LEFT AILERON, THE CENTER RIB WAS FOUND CRACKED IN THE FORWARD ATTACH FLANGE. THIS AREA IS RIGHT BEHIND THE ACTUATING PUSH ROD. BOLTS WERE TIGHT. TOTALLY INACCESSIBLE TO VIEW.