William T. Faricy, 87, who was president of the Association of American Railroads for 10 years before retiring in 1957, died of cardiac arrest Saturday at Georgetown University Hospital.

In addition to serving as the Aar's president, Mr. Faricy was the organization's board chairman for a year before retiring. He also had been chairman of the U.S. National Commission of the Pan American Railway Congress from 1949 to 1958, and a member of the permanent commission of the Pan-American Railway Congress Associations.

He was a native of St. Paul, Minn., and had attended the St. Paul College of Law, where he was a hockey player. In late years he became known as one of President Eisenhower's favorite golfing partners.

He began his railroad career as a company lawyer, rising to the position of vice president and general counsel of the Chicago and North Western Railway.

In 1945 and 1946 he was chief counsel of the Carriers' Conference Committee, which represented railroads in national labor matters

Mr. Faricy was a life trustee of Northwestern University and had served on the board of directors of the Riggs National Bank. He also had been a national officer of the American Legion.

He served with the infantry in France in World War I.

Mr. Faricy was a member of Metropolitan, Burning Tree Country, and Alfalfa clubs.

He was a resident of Washington.

Survivors include his wife, Norma N., of Washington; a daughter, Norma Condee of Pennsylvania; three brothers, Austin, of Cardiff, Pa., George, of Del Ray Beach, Fla., and Leo, of St. Paul; a sister, Dominica Lee of St. Paul; nine grandchildren and two great-grandchildren.