American Savings and Loan Association was an American savings and loan based in Stockton, California. It was the largest thrift failure and the federal government's costliest resolution during the savings and loan crisis at an estimated cost of $5.4 billion. Charles Knapp was convicted in 1993 of fraud, although it was not related to American Savings. His company, Trafalgar Holdings Ltd., obtained a $15 million loan from Western Savings and Loan in Phoenix, Arizona, using fraudulent financial information. He was sentenced to 6+1⁄2 years in prison.