A Boeing whistleblower found dead last year had raised safety concerns about the US factory that makes the Dreamliner plane that went down in the Ahmedabad air disaster.
John Barnett alleged that second-rate parts were removed from bins before being fitted to planes that were being built in order to prevent delays.
The engineer claimed there was a risk the decision could cause an explosion that would 'bring the whole plane down'.
He also alleged that Boeing had tried to 'eliminate' quality checks at the factory where he worked in North Carolina, which builds the 787 Dreamliner.
Mr Barnett accused the company of 'countless' violations of US law including use of sub-standard parts to prevent production line delays. He also alleged paperwork was knowingly falsified.
