NEW DELHI (Reuters) -The head of Boeing Commercial Airplanes, Stephanie Pope, met the chairman of Air India on Monday in India, two sources said, as the companies seek to find the cause of last week's fatal crash involving a Boeing 787 Dreamliner.

The crash happened just weeks after the company cut a deal with the U.S. government to avoid taking criminal responsibility for a pair of deadly crashes in 2018 and 2019.

Indian authorities have ordered what they called “extended surveillance” of all Boeing 787 aircraft in the country’s fleet while they investigate the cause of the Air India crash.

A London-bound passenger plane crashed in the Indian city of Ahmedabad on Thursday and all 242 people on board were believed killed, with the jet smashing into buildings housing doctors and their families.

A helicopter carrying six people has crashed in the northern Indian state of Uttarakhand, news agency ANI reported on Sunday. The aircraft was flying from Dehradun to Kedarnath before it went missing in Gaurikund and crashed,