TULSA, Okla. (AP) — American Airlines said it's adding 400 jobs at its Tulsa maintenance facility, marking what an airline official calls the largest workforce addition to that base in over a decade.

About 330 of the new positions will be filled by mechanics who have the potential to earn six figures as they accrue seniority, airline officials told The Associated Press on Thursday. The remaining positions will be offered at a lower salary.

"We're growing the organization considerably, and we haven't had a hiring announcement like this in over a decade," said Erik Olund, managing director of ba...