India’s Directorate General of Civil Aviation (DGCA) has issued orders for “enhanced checks” to be carried out on Boeing 787s powered by GEnx turbofans registered in the country.

Those looking for clues as to the causes the authorities believe might be behind the disastrous Air India 787 crash at Ahmedabad on 12 June are likely to be disappointed, because the checks cover a broad spectrum of systems and components, many of which would be checked before all flights as a matter of routine.

But here is the instruction anyway.