The US National Transportation Safety Board (NTSB) says today that it expects to release at the end of this year a probable cause for the Boeing 787 battery malfunctions that grounded the fleet for four months in 2013. The investigative work by the NTSB should be complete by late March. The investigation team will then begin preparing a final report, which will be presented to the board at a public meeting in Washington DC in the fourth quarter, the NTSB says. (www.flightglobal.com) 更多...
That's why such problems are called 'teething problems', the ones which disappear either by taking minor care or with efflux of time. The persisting kind are never called so !
The persisting kind are never called so !