Boeing has consistently maintained that the 787 is safe,saying the firm’s exhaustive testing procedures on aircraft ensure this is the case.

The company has told numerous outlets it would defer to India’s AAIB to provide information about the investigation.

The AAIB defended its interim report shortly after publication. It insisted that it was not meant to direct blame towards the pilots or to encourage anyone to draw conclusions,which it called ‘irresponsible’.

It said in a statement in July: ‘The purpose of AAIB’s investigation and preliminary report is to provide information about ‘WHAT’ happened. The preliminary report has to be seen in this light.

‘At this stage,it is too early to reach to any definite conclusions. The investigation by AAIB is still not complete. The final investigation report will come out with root causes and recommendations.’

The investigative body said it has a ‘flawless record’ from looking into 92 accidents and 111 serious incidents since 2012.

Air India’s boss also defended the results of the AAIB’s interim report in September,saying: ‘For the moment,the preliminary report indicates nothing wrong with the aircraft,nothing wrong with the engines,nothing wrong with the airlines operation,but we’ve taken a significant safety pause to ensure all of our practices and procedures are fully embedded,and people are fully embracing a new normal of even extra focus on safety,and the focus continues to be on the people that were affected.’

Air India,Tata Group and India’s AAIB have been approached for comment.

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