NTSB

On the face of it, this was odd because such a body already exists, as the NTSB must have known.

Boeing staff have been in Kuala Lumpur working alongside technicians from the NTSB.

It can take the NTSB years to produce a final report on an accident.

Peter Knudson, an NTSB spokesman, told me: “The NTSB has not ruled out a fire in the battery box.”

The NTSB published a detailed account of the incident on February 12.