India's aviation safety watchdog said on Tuesday surveillance conducted on Air India's Boeing 787 fleet did not reveal any major safety concerns, days after one of its jets crashed, killing at least 271 people.

Investors and the wider public are looking for answers after Thursday’s crash of an Air India 787 jet. Both of the plane’s black boxes have been recovered.

The Air India crash is the latest in a series of setbacks that have defined much of the past decade for Boeing. These have led to a cascading effect on Boeing’s operations and finances, while its rival Airbus barely made any news and stayed profitable.