Several passengers reported as many as three explosions in the plane, and Oscar Alejandro, then director of the Philippine Air Transport Office, confirmed the engines had not been started at the time of the blasts.
Varios pasaxeiros informaron de ata tres estoupidos no avión, e Oscar Alejandro, entón director da Oficina de Transporte Aéreo de Filipinas, confirmou que os motores non estaban encendidos no momento dos estoupidos.