Capt. Chesley “Sully” Sullenberger, known for saving 155 people aboard an airplane that crashed into the Hudson River in 2009, revealed Tuesday that he has recently been diagnosed with Alzheimer’s disease.

Capt. Chesley “Sully” Sullenberger, known for saving 155 people aboard an airplane that crashed into the Hudson River in 2009, revealed Tuesday that he has recently been diagnosed with Alzheimer’s disease.