Bombardier on Friday delivered its 100th Canadair Regional Jet to PSA Airlines, an American Airlines subsidiary.

The aircraft PSA accepted on Friday was a CRJ900, one of 24 PSA ordered in December 2014.

“We are proudly becoming one of the largest regional service providers for American — the world’s largest airline, and we’re also on track to soon become the operator of the world’s largest all-Bombardier fleet of commercial aircraft,” said PSA president Dion Flannery in a Bombardier news release.

PSA’s fleet comprises CRJ200s, CRJ700s and CRJ900s. It operates as American Eagle.