Upon examination of the aircraft wreckage by the RAE, it became evident that the aircraft had broken up in mid-air, and there was initially some speculation that the aircraft might have been brought down by a bomb. Suspicion then shifted to the possibility of an engine turbine explosion, and modifications were instigated in other Comets, where the turbine ring was encased with armour plate to contain a possible disintegration of the turbine disk. The possibility of failure of the pressure cabin was also considered, but this theory was discounted because the Comet's cabin had been designed to a considerably higher strength than was considered necessary at the time.