On Friday, American Airlines announced a more than $550 Million investment into new facilities in Tulsa.
"This is a commitment by the company for the long term, that they want to be here in Tulsa," said Mayor G.T. Bynum.
The new facilities will include a new 193,000-square-foot hangar and a 132,000-square-foot support facility. The new hangar will replace two old hangars and will be able to hold two whole-body aircraft or six smaller ones.
The seven-year project is the largest investment ever made at the Tulsa base and will affect every building there.
It will also include other improvements to existing infrastructure in Tulsa.
The company says the investment will also provide improvements to the existing infrastructure, including roof replacements, utility and IT upgrades and ramp repairs, according to a news release. It says the investment underscores American's long-term commitment to the Tech Ops-Tulsa Team, State of Oklahoma and City of Tulsa.
"It provides that kind of flexibility we need around the world to do aircraft maintenance" said Erick Olund, the Director of the Tulsa site.
More than 5,500 people work at the Tulsa maintenance base.
It's American Airlines' largest base maintenance facility.