Device for supporting and fixing equipment to a fairing of a nacelle or of an aircraft engine, the device comprising at least one vibration damper comprising a first part intended to be fixed to the fairing, and a second part that is connected by elastically deformable means to the first part, said second part being intended to be connected rigidly to the equipment so as to suspend said equipment on the fairing, the or each vibration damper being associated with a safety member (60, 160, 260): - intended to keep the vibration damper in position on the fairing in the event of the failure or breakage of said vibration damper or of means (38, 138, 238) of fixation of the vibration damper on the fairing, to ensure the support and fixation of the equipment, - which straddles the vibration damper, the safety device comprising a middle part (62, 162, 262), that at least partly caps or covers the damper, and lateral opposite ends (64, 164, 264) intended to be fixed to the fairing, the device comprising means (80, 180, 280) of fixation of the safety member on the fairing which are independent of the means (38, 138, 238) of fixation of the vibration damper on the fairing, characterised in that - the safety member is independent of the vibration damper, - the middle part (62, 162, 262) of the safety member is formed with a flat plate having a circular or rectangular shape, - said plate: -- comprises, at two opposite ends, lateral feet (64, 164, 264) for fixation to the fairing, or -- comprises, at its two opposite ends, cables for fixation to the fairing, or -- is directly fixed at two opposite ends to the fairing, and, - a flat gasket is interposed between the middle part of the safety member and an upper end of the first part of the vibration damper. - intended to keep the vibration damper in position on the fairing in the event of the failure or breakage of said vibration damper or of means (38, 138, 238) of fixation of the vibration damper on the fairing, to ensure the support and fixation of the equipment, - which straddles the vibration damper, the safety device comprising a middle part (62, 162, 262), that at least partly caps or covers the damper, and lateral opposite ends (64, 164, 264) intended to be fixed to the fairing, the device comprising means (80, 180, 280) of fixation of the safety member on the fairing which are independent of the means (38, 138, 238) of fixation of the vibration damper on the fairing, - the safety member is independent of the vibration damper, - the middle part (62, 162, 262) of the safety member is formed with a flat plate having a circular or rectangular shape, - said plate: -- comprises, at two opposite ends, lateral feet (64, 164, 264) for fixation to the fairing, or -- comprises, at its two opposite ends, cables for fixation to the fairing, or -- is directly fixed at two opposite ends to the fairing, and, -- comprises, at two opposite ends, lateral feet (64, 164, 264) for fixation to the fairing, or -- comprises, at its two opposite ends, cables for fixation to the fairing, or -- is directly fixed at two opposite ends to the fairing, and, - a flat gasket is interposed between the middle part of the safety member and an upper end of the first part of the vibration damper.