In one of its most significant disciplinary proceeding to date, the Public Company Accounting Oversight Board has taken down another Big Four engagement partner and may still be working on a case against the audit firm as well.

The PCAOB slapped Deloitte & Touche Audit Partner Christopher Anderson with a one-year suspension from public company audit work, a $25,000 fine, and a one-year restriction on his audit abilities when his suspension expires for his role in the audit of 2003 financial statements for Navistar Financial Corp. The disciplinary order does not make any findings against the audit firm.