Pratt & Whitney re-sets CSeries engine certification to early 2013

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Airworthiness certification for the Pratt & Whitney PW1524G is now set for early next year, the engine manufacturer says.

The updated timing indicates a small delay from December certification for the engine that both powers the Bombardier CSeries aircraft family and ushers P&W's new class of turbofans featuring fuel-saving reduction gears between the low-pressure turbine and inlet fan.

"We are very close to PW1500G certification," P&W says. "We are finishing up the last few remaining tests over the coming weeks and we expect certification early next year."

The PW1524G entered flight tests in January and by mid-year had accumulated 200h on a flying 747 testbed by mid-year, as well as about 1,000h of testing on the ground.

Engine certification was originally timed by late 2012 to support Bombardier's plan to complete first flight of the CSeries before 2013.

In November, Bombardier postponed first flight of the CSeries from December to no later than June. Bombardier executives noted that the timing of engine certification was a factor in the decision, but P&W said in November that engine certification remained on track for December.

The PW1524 is the first in a series of four new models featuring the geared drive system, including the PW1100G for the Airbus A320neo, PW1200G for the Mitsubishi Regional Jet and the PW1400G for the Irkut MS-21.

P&W originally planned to certify the PW1200G first to support MRJ first flight in the second quarter of 2012, but that timetable was delayed more than a year. In September, P&W said that engine certification for the PW1200G was postponed from end-year 2012 to mid-year 2013.

At the time, P&W said that the delay to the MRJ engine certification was necessary so the company could focus resources on completing engine certification for the CSeries by December.