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.

India aviation regulators have found no major safety concerns with Air India’s fleet of Boeing Co. 787 jets during ongoing inspections following a crash last week that killed 241 passengers and crew.

An Air India Boeing 787-8 flight headed for New Delhi returned to Hong Kong shortly after takeoff Monday because of a "technical issue," Indian media reported.

An Air India crash Thursday involved a Boeing 787-8 Dreamliner, which the aircraft manufacturer first delivered 14 years ago.

Boeing was generating optimism. Then on Thursday a 787 crashed, raising the specter of fresh problems for Boeing and altering the message it planned to send.

Air India and Boeing are in the midst of significant turnarounds, but knowing the cause of the crash of Flight 171 will take a lengthy investigation.

Officials say at least 270 bodies have been recovered, while the lone surviving passenger is still under observation for some of his injuries.

Air India faces disruptions with international flight cancellations, maintenance checks, airspace closures, and unserviceable aircraft causing chaos.