Polish flag carrier LOT says it cancelled two transatlantic flights and postponed another because of "technical problems" on two of its Boeing 787 twinjets.
Yesterday a service from Warsaw to Chicago was cancelled due to "problems with the power system", and a Toronto-bound flight was postponed as a result of "issues associated with the plane's tracking system", says the airline.
It adds that the problems were "minor and not linked to the battery problems behind the global grounding of the 787 fleet earlier this year".
The postponed Toronto flight departed this morning after the problem was fixed, but with one Dreamliner still undergoing checks, another service was cancelled.
"We know [the 787] will continue to receive heightened attention when reliability events occur in service," says Boeing. "The 787 is equipped with advanced health monitoring features that allow Boeing and airlines to understand in-flight events as they occur and prepare for any necessary maintenance procedures prior to landing.
"For these events, we stay in close contact with our customer and work with the airline to return the airplanes to service in as timely a manner as possible."
The manufacturer adds: "Overall 787 in-service performance continues on par or better than the Boeing 777 experience at the same timeframe following its introduction. That said, we continue to focus on the 787's reliability improvement efforts."