As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POSSIBLE CRACK ON STIFFENER LBL18.00 AT FS409.00+128 INDICATION IS AT THE VERY BOTTOM ON THE OTBD. COMPLY WITH EC/TC REO 601R-53-41-056. RT 161728 09/23/11 (LT) COMPLIED WITH EC/TC REO 601R-53-41-056 IAW REO 601R-53-51-056, REV-E. RII FOUND TO BE SATISFACTORY. (SDR CLOSED)