As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CHECK-C MAINT CHECK, FOUND APPROX 2 INCH CRACK IN OUTER SKIN AT STA 108, BETWEEN LONGERON 27L AND 28L. ACCOMP NDT HIGH FREQ EDDY CURRENT PER 51-00-03 PART 6. CRACK WAS CONTAINED AT DRAIN HOLE. STOP DRILLED CRACK AND INSTALLED REPAIR DOUBLER PER SRM 53-01 FIG 2.