Bob O’Connor, principal of Park City High School, announced Friday that he will not be returning to his position in order to address health concerns.

O’Connor began taking a personal leave in November, after which the Park City School District announced Kathleen Einhorn, associate superintendent of teaching and learning, would serve as the interim principal.

In a released statement Friday, O’Connor said that he has been “going through a series of screenings and tests to diagnose my health-related symptoms.” He said that doctors found evidence of a neuromuscular-degenerative disease and that he is taking time off to seek multiple care plans and treatments.

“Due to the nature of my health issues I will not be able to return as Principal of Park City High School,” he said in the statement.

Ember Conley, superintendent, said in a press release from the district that O’Connor is a highly respected educator and administrator and that his service as a leader in the district will be irreplaceable.

She also said that Einhorn will continue to serve as principal for the remainder of the 2017-18 school year. The district plans to post the open position this month and begin searching for a new principal. It intends to announce a replacement in late March.

O’Connor began working at the high school in 2012. Prior to that, he served as assistant principal at the high school and a principal at Treasure Mountain Junior High.