Ducommun Inc., Los Angeles, reported record revenue...

Ducommun Inc., Los Angeles, reported record revenue and earnings for the year ended last Dec. 31. Revenue increased 48% and net income increased 38%. The company attributed the results to gains by its aerospace services group.

Minneapolis-based NWA Inc., parent of Northwest Airlines, posted a $30.6-million fourth-quarter loss because of a previously announced charge stemming from a U.S. Supreme Court decision. In the fourth quarter of 1983, NWA earned $11.6 million. Last month, the Supreme Court declined to review a lower court decision awarding more than $58 million to 3,300 present and former Northwest flight attendants who had filed a discrimination suit against the airline in 1970.

Convergent Technologies Inc. reported a $13.8-million loss for 1984, compared to last year’s earnings of $14.9 million. The Santa Clara, Calif.-based computer maker reported revenue of $361.8 million for the year ended last Dec. 31, up from $163.2 million in the year before.

For detailed data and results of other companies, please see accompanying tables.