The invention refers to a propeller blade (1) for an aircraft engine that comprises an airbag system contained inside the blade (1) and comprising at least one bag (8) and at least one gas generator (9), the at least one gas generator (9) in fluid communication with at least one bag (8) for inflating the same; a detecting system for detecting a rupture of a part of the blade (1); a trigger (10) for activating the at least one gas generator (9) when a rupture is detected by the detecting system; and the blade skin (6) being configured for allowing the at least one bag (8) to pass through it for being expanded outside the blade (1) upon its inflation by the gas generator (9).
