The latest Airbus widebody aircraft, the A350-1000, has received certification from European and United States authorities and is on schedule for delivery to Qatar Airways later this year.
The three A350-1000 flight test aircraft successfully accumulated over 1600 flight hours.
Of these, 150 flight test hours were completed with the same aircraft in an airline-like operational environment, including in extreme cold conditions, to demonstrate its readiness for entry into service.
The 369-seat plane was given Type Certification by the European Aviation Safety Agency (EASA) and the Federal Aviation Administration (FAA). The certified aircraft is powered by Rolls-Royce Trent XWB-97 engines.
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It has a range of 14,750km.
Airbus executive vice president engineering, Charles Champion, said receiving the A350-1000 Type Certification from EASA and FAA less than one year after its first flight was an "incredible" achievement for Airbus.
"The A350-1000 benefits from the maturity of its successful brother, the A350-900, which has translated into excellent right-on-time performance. We now look forward to deliver the first aircraft to Qatar Airways by the end of the year."
To date, 11 customers from five continents have ordered a total of 169 A350-1000s.
The A350-1000 has 95 per cent common systems and parts as earlier model A350s part numbers and same type rating.
As well as having a longer fuselage to accommodate 40 more passengers than the A350-900, in a typical three-class configuration, the A350-1000 also features a modified wing trailing-edge, new six-wheel main landing gears and more powerful Rolls-Royce engines
Rival Boeing's next stretched Dreamliner, the 787-10, will be delivered next year.