During the investigation, the Accident Investigation Commission calculated that this incorrect installation would fail after approximately 10,000 pressurization cycles; the aircraft accomplished 12,318 successful flights from the time that the faulty repair was made to when the crash happened.
Durante a investigación, a Comisión de Investigación de Accidentes de Aviación calculou que esta instalación incorrecta fallaría despois duns 10 000 ciclos de presurización; o avión completara 12 318 voos dende a reparación cando ocorreu o accidente.