An article yesterday misstated the role of retired justice Lewis F. Powell Jr. in the Supreme Court's consideration of the abortion issue. He was part of a 7-to-2 majority in the 1973 Roe v. Wade decision establishing the constitutional right to abortion. He was the critical vote in a 5-to-4 decision last year that reaffirmed the earlier ruling.

An article in yesterday's Business Section incorrectly described the actions taken by federal banking regulators to aid banks in economically depressed areas. The regulators eased banks' capital requirements but did not change their cash reserve limits.

Because of an editing error, in an article in last Sunday's Show section by Thomas P. Friel, chairman of the Home Recording Rights Coalition, a proposed antitaping encoding system for digital audio tapes was incorrectly described as "inaudible." Friel contends that the proposed encoding is audible and therefore causes distortion in the music. CLARIFICATION

A recent article about the filming in Richmond of a television movie reported that Leo Frank was convicted in Atlanta in 1913 of murdering a 13-year-old girl, that his death sentence was commuted and that he was hanged by a mob in 1915. In 1982, a witness in the Frank prosecution told a Nashville newspaper that he was convinced Frank was innocent of the murder. In 1983 the Georgia Board of Pardons and Paroles declined a request to declare Frank innocent. He received a pardon posthumously last year.