MIAMI — Aviation lessor Aerolease Aviation has finalized a firm order for 10 Mitsubishi Regional Jets plus 10 options, confirming a letter of intent signed at the 2016 Singapore Airshow.

Both firms signed a definitive purchase agreement today, paving the way for the first delivery to the Miami-based firm in 2018.

“We are pleased to become the world’s first aircraft leasing company to conclude a definitive agreement for the purchase of the MRJ.” commented Jep Thornton, Partner, Aerolease Aviation.

Aerolease becomes the first lessor to sign a firm order for the MRJ, taking the aircraft program to 233 firm orders, with 170 options and 24 purchase rights. Another leasing firm, Rockton Aviation, subscribed and MoU for 10 firm aircraft and 10 options at the 2016 Farnborough Airshow.

Mitsubishi Aircraft Corporation (MAC) has recently experienced technical issues with the MRJ’s air management system, postponing a ferry flight to the United States, where four of the flight test fleet will perform most of the campaign.

Last June, MAC confirmed that the MRJ is on track for certification and entry-into-service (EIS) by mid 2018. The target was set in December of last year when the airframer announced a one-year delay, largely attributed to changes in the design, manufacturing process and parts.