NTSB determines Uncle Blue towboat sinking due to severe corrosion and inadequate maintenance.

NTSB concluded the Uncle Blue towboat sinking on Lower Mississippi River was due to severe hull corrosion, leading to multiple holes and flooding. The 60-year-old vessel was inadequately maintained, with numerous wastage holes and doubler plates. NTSB recommends proper hull maintenance and avoiding doubler plates for permanent repairs, and highlights the importance of high-water bilge sensors for early flooding detection.