Final Report: Convective Turbulence, Not Clear-Air, Caused SQ321 Incident; Radar Issues Cited

The final investigation report into the harrowing Singapore Airlines SQ321 incident has shed new light on the catastrophic event that occurred in May 2024. Contrary to initial speculation, the severe turbulence encountered over Myanmar was not a case of the elusive 'clear-air turbulence.' Instead, investigators pinpointed 'convective turbulence,' a phenomenon common in tropical regions, as the culprit.

What makes this finding particularly concerning is the report's suggestion that the aircraft's onboard weather radar might have failed in its duty. Investigators noted that the crew did not observe any anomalies on their radar displays or visible cloud formations ahead, yet a rapidly developing convective cloud system unleashed extreme turbulence. The report highlights instances where Singapore Airlines' Boeing 777 fleet has experienced multiple cases of weather radar underestimation or failure to detect adverse weather, raising serious questions about the technology's reliability in such critical situations.

The sheer violence of the event, described as a sudden drop from positive 1.35G to negative 1.5G in just 0.6 seconds, plunged passengers into a state of weightlessness before slamming them back down. This occurred during meal service, exacerbating the injuries among those moving about the cabin. The report's findings underscore the unpredictable nature of severe weather phenomena and the critical importance of advanced, reliable detection systems to ensure passenger safety on international flights. For travelers, this serves as a stark reminder of the inherent risks associated with air travel, even with stringent safety protocols in place.