Lawyers representing several injured passengers from the deadly Singapore Airlines turbulence flight are questioning the airline’s claims about what caused the terrifying moment onboard the plane.

Peter Carter, Director of Carter Capner Law, said it was a possibility the cause was not just simply turbulence.

“[Possible causes] include possible failure to take the normal precautions to avoid an obvious and large area of thunderstorms, and the failure to alert passengers to fasten seat belts,” the firm said in a media release on Tuesday.

A photo from inside the plane after it had made an emergency landing in Bangkok. Source: Reuters

If it was determined there were failures on Singapore Airlines’ part, compensation claims from passengers would not be capped at $260,000, Carter said.

“Our working theory is that the aircraft flew through the top of a thunderstorm or in too close proximity to one as it passed over an area notorious for thunderstorm activity in the Inter Tropical Convergence Zone,” he said.

“The cockpit voice recorder will answer questions about the attention the air crew was paying to developing thunderstorms including whether they were even checking the weather radar.”

“Furthermore, despite a suggestion from the airline that a return to seat announcement had been made and the seatbelt sign illuminated prior to the incident, passengers we represent tell us there was no seatbelt warning at all, and that service by the flight attendants was proceeding normally.”