As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CONDUCTING OTHER MAINTENANCE, CORROSION WAS DISCOVERED IN TWO PLACES INSIDE THE FUEL TANK, ON THE FORWARD RADIUS OF THE LH AFT OUTBOARD SPAR CAP (P/N 5122041-21.) THE FIRST AREA WAS FOUND AT W.S. 228.71 TO W.S. 225.71. THE SECOND AREA WAS DISCOVERED AT W.S. 224.21 TO W.S. 221.71. BOTH AREAS OF CORROSION WERE DEEPER THAN THE ALLOWABLE REMOVAL LIMITS PRESCRIBED IN CESSNA'S MEB 95-11-R1 SECTION 3, ITEM B. AS A RESULT, THE SPAR CAP WAS REPLACED WITH NEW.