Former Penn State President Graham Spanier wrote a letter to the university’s board of trustees Sunday to say the findings of Louis B. Freeh’s investigation into the university’s handling of allegations against Jerry Sandusky was fraught with factual errors. Spanier said his attorneys would confidentially share with the university the “many errors” contained in the 267-page Freeh report.

The letter came on the eve of unprecedented sanctions from the NCAA against Penn State’s football program, which included $60 million in fines, a four-year postseason ban, the loss of scholarships and the vacating of every win the program had between 1998 and 2011. It was during that time period, according to the Freeh report, that Spanier, former athletic director Tim Curley, former vice president of business and finance Gary Schultz and former head coach Joe Paterno all concealed information that Sandusky was sexually abusing children.