Mexico’s flag carrier, Aeromexico, has signed a 12-years Rate Per Flight Hour agreement with CFM Services to support a minimum of 128 LEAP-1B engines that power its fleet of Boeing 737 MAX 8 and MAX 9 airplanes. The order is valued at $2.3 billion U.S. at list price.

RPFH agreements are part of CFM Services flexible support offering. Under the terms of the agreement, CFM will support the fleet on a dollar per flight hour basis.

“We know from experience the high level of support we get from CFM. This latest agreement is an assurance that our LEAP engines will be maintained to the highest possible standards while helping to make our overall cost structure more predictable,” Dr. Ricardo Sanchez Baker, Aeromexico’s CFO.

Aeromexico, which was founded in 1934, is a long-time CFM customer and took delivery of its first CFM56-7B-powered Next-Generation 737 in 2003. Today, the airline operates as three new 737 MAX 8 airplanes, as well as a fleet of more than 52 CFM56-powered Next-Generation 737s.

“We certainly appreciate the trust that Aeromexico has placed in CFM to support its fleet of LEAP-1B engines,” said Gaël Méheust, president and CEO of CFM International. “The airline has had a very smooth introduction of the LEAP-1B into their fleet. We look forward to helping them keep their new fleet flying.”