As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-17 CHECK EXFOLIATION CORROSION WAS FOUND ON STRINGER 27 LT BETWEEN BS 1006 AND BS 1009. MAINTENANCE REMOVED CORRODED STRINGER 27 LT FROM BS 978 TO BS 1016; FABRICATED A NEW REPLACEMENT SECTION OF STRINGER, A REPAIR ANGLE AND CHANNEL; INSTALLED REPAIR PARTS IAW B737-300 SRM 53-00-03, FIG 201.