American Airlines has apparently settled on contract terms with a third group of ground workers.
The airline said over the weekend that it has a tentative agreement with about 90 maintenance control technicians. The airline has more than 50,000 unionized workers.
Earlier, the company announced agreements with much larger groups, the mechanics and parts handlers.
All three deals face ratification votes. All the workers are represented by the Transport Workers Union.
American, a unit of AMR Corp., is still negotiating with pilots and flight attendants.