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 GALVANIC CORROSION WAS FOUND ON THE LT VERTICAL STABILIZER FORWARD SPAR TO BODY BOLT BS 1016, STR 2 LT. MAINTENANCE REMOVED AND REPLACED L/H VERTICAL STABILIZER FORWARD SPAR TO BODY BOLT IAW T/C I6B55002.