As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPECIAL STRINGER ON LOWER KEEL BEAM, LEFT SIDE HAS CORROSION BETWEEN FRAMES 24A LT AND 27A LT. CAUSE OF CORROSION DETERMINED TO BE ENVIRONMENTAL. CORROSION BLENDED AND FOUND BEYOND LIMITS IAW 32 PERCENT MATERIAL THICKNESS SRM 53-51-00 PAGE 304. REMOVED AND REPLACED SPECIAL STRIGNER ON LOWER KEEL BEAM, LEFT SIDE BETWEEN FRAMES 24A AND 27A LEFT IAW SRM 53-00-00. (M)