Norwegian Air Shuttle has taken one of its new Boeing Dreamliners out of service because of technical problems.
The low cost airline experienced a problem with a hydraulic pump in Bangkok and the plane was flown back to Stockholm, where it will be repaired by a Boeing team.
Lasse Sandaker-Nielsen, a spokesman for Norwegian, said the aircraft had been taken out of long-haul service "because it has not been performing the way a new aircraft should".
He said to Reuters: "It’s caused major delays for our passengers. The aircraft’s reliability is simply not acceptable."
The airline said it would lease an Airbus A340 to fly on its two new long-haul flights between Stockholm, and New York and Bangkok.
Norwegian has suffered because it is not in an alliance, and so cannot put its passengers on other airlines’ aircraft when problems occur.
Boeing said it had agreed to "implement a number of enhancements to improve the aeroplane’s in-service reliability", and said the jet would be out of service for "a matter of days".
"We are working tirelessly to provide support to Norwegian," a company statement said. "We regret the inconvenience and disruption caused to the airline and its passengers as a result of this process."
It is the latest setback for the Dreamliner, which entered service more than three years later than planned in 2011 and has since been dogged by problems.
In January 2013, the Dreamliner was grounded after lithium-ion batteries overheated on two 787s.
In July, an Ethiopian Airlines’ Dreamliner caught fire at London’s Heathrow airport and in August , All Nippon Airways delayed a 787 flight from Japan to Germany after discovering a wiring fault on the jet, see previous story.
