The preliminary finding gives investigators a new line of inquiry as they study a crash that killed all but one of the plane’s passengers.

The Dreamliner crash echoes the catastrophic 737 MAX crashes of 2018 and 2019, which killed 346 people and exposed profound flaws in Boeing's design and certification processes. Ed Pierson, a 737 MAX whistleblower and former Boeing engineer, starkly warned senators last year that:

Air India warns of delays as the DGCA orders mandatory safety checks on all Boeing 787s after a deadly Ahmedabad crash kills 265.