The first Airbus A321neo powered by Pratt & Whitney engines made its maiden flight Wednesday, marking the PW1135G turbofan's entry into flight test on Airbus' largest narrow-body.

The A321neo took off from Airbus's Hamburg assembly facility at around 10:15 a.m. local time and landed at the company's Toulouse site almost six hours later after completing a series of airborne tests, a spokeswoman for the European plane maker said.

The PW1135G-JM engine, a 35,000 thrust class engine, for the Airbus A321neo aircraft, is the most powerful engine on the A321neo.

The six-hour mission came after delivery delays prompted Airbus to first fly the CFM Leap-1A-powered A321neo last month. Despite the switch in first flight sequence, Airbus still plans to deliver the Pratt-powered A321neo ahead of the Leap-powered version by the end of the year.