For the first time since announcing his Alzheimer’s diagnosis over the summer, Capt. Chesley “Sully” Sullenberger discusses his experience with the disease and what lies ahead. ↧ Capt. Sully Sullenberger speaks out about Alzheimer’s diagnosis: ... Capt. Sullenberger announced his diagnosis in a post on his website over the summer and spoke publicly about it for the first time Wednesday.