HYDERABAD, India, Boeing [NYSE: BA] and SpiceJet, the Indian low cost carrier owned by the Sun Group announced today at India Aviation 2014 an order for 42 737 MAX 8 aircraft.

The order, previously listed as unidentified on the Boeing orders & deliveries website, is valued at $4.4 billion at list prices. The LEAP-1B is the sole powerplant for the Boeing 737 MAX aircraft.

The Boeing 737 MAX 8 aircraft are powered by CFM International LEAP-1B engine, the engine order is valued at $1.1 billion at list price.

S.L. Narayanan, Group chief financial officer for the Sun Group. "SpiceJet greatly values the ties we have built over the years with Boeing.

"The Boeing Next-Generation 737 aircraft, the mainstay of the fleet ever since SpiceJet started operations, have vindicated our choice by their endurance, reliability and cost effectiveness.

"The induction of Boeing 737 MAX will further modernize our fleet, improve customer experience, and ensure that we operate the most efficient fleet well into the future."

Dinesh Keskar, senior vice president of Asia Pacific and India sales, Boeing Commercial Airplanes, added: "The order is a tremendous endorsement of the 737 MAX's unsurpassed fuel efficiency.

"The capabilities of the 737 MAX supports SpiceJet's mission to become India's preferred low-cost airline. We are very proud to be partners with SpiceJet and a part of the airline's continued success with the addition of the 737 MAX."

Gaël Meheust, vice president of Sales for CFM International, added: “We have built a great relationship with this airline over the years and really look forward to introducing the LEAP engine into their fleet."

The Boeing 737 MAX had its firm configuration of the aircraft achieved in July 2013. First flight is scheduled in 2016 with deliveries to customers beginning in 2017.

The 737 MAX has accumulated more than 1,800 orders to date. With today's announcement, SpiceJet has ordered 90 airplanes directly from Boeing, which includes the 737-800, 737-900ER and now the 737 MAX. To date, SpiceJet has taken delivery of 31 of the airplanes.