In 1972, Renetta Predmore-Lynch learned she had been denied a promotion because of her gender and registered a complaint with NSA's Equal Employment Opportunity office. It was determined that the promotion process violated its own evaluation rules, and excluded women from the promotion boards.

However, in April 1973, NSA's Director rejected Mrs. Predmore-Lynch's claims and the investigator's findings. In September, the Board of Appeals and Review found that Mrs. Predmore-Lynch had been discriminated against and that the promotion procedures discriminated against female employees.

Part of the 1976 ruling of the U.S. District Court required NSA to include at least one woman with equal voting rights on every promotion board. Through Mrs. Predmore-Lynch's efforts, women today are ensured a fair promotion hearing.