@mfahadnaimb: Shot this A350 XWB power-up on pneumatic air yesterday. Turn the volume up... it's loud as hell even from where I was standing. Been doing this job long enough to know what that does to your hearing over the years. Studies on ground engineers and maintenance crews show the damage: about 15% in the under 30 group, 42% in the 30-39 group, and 80% at 40+. Another crew hit 41%. High frequency stuff mostly, but it adds up and a lot of older guys end up needing aids. Use your protection every time.#airbus #Aviation #avgeek #a350 #airbusa350