Bahrain’s national carrier has signed a $1.9 billion agreement with engine-maker CFM International for 58 LEAP-1A engines.

The engines will power 17 Airbus A321neo and 12 A320neo aircraft while 7 additional will serve as spares to support Gulf Air’s operations.

The firm engine order comes after the Manama-based airline placed an order for Airbus’ A320 family in January 2016.

To support its fleet, the airline has also signed a 10-year Rate Per Flight Hour (RPFH) agreement.

Throughout the term of the agreement, CFM guarantees maintenance costs for all of Gulf Air’s LEAP-1A engines on a dollar per engine flight hour basis.

Gulf Air’s fleet of 16 Airbus A320ceo aircraft are powered by CFM56-5B engines.

The airline will welcome 17 Airbus A321neo and 12 A320neo aircraft alongside 10 Boeing Wide Body aircraft – due for delivery commencing in early 2018.