During engine ground turn-up, which precaution helps prevent hearing loss due to noise?

During engine ground turn-up, which precaution helps prevent hearing loss due to noise?

• A. Wear proper PPE to prevent hearing loss from noise hazard
• B. Maintain a distance of 9 ft radius from intakes and 25 ft at MIL or MAX to prevent being pulled into the intake
• C. The area immediately aft of the tailpipes is hazardous for 15 minutes after engine shutdown
• D. Stand directly in line with the exhaust tailpipe

Answer: (A)

High noise levels during engine ground turn-up require protecting your hearing. The best precaution is wearing proper personal protective equipment designed for hearing protection, such as rated earplugs or earmuffs, to reduce the sound reaching your ears and limit exposure time. This directly addresses the risk of noise-induced hearing loss by providing attenuation at the source of exposure and ensuring you stay within safe hearing limits. The other statements cover different safety concerns: staying a safe distance from intakes helps prevent being pulled into the engine, the area behind the tailpipes being hazardous after shutdown relates to heat and fumes, and standing in line with the exhaust tailpipe would increase exposure to heat, fumes, and noise. None of these directly protect against hearing loss the way appropriate PPE does.

High noise levels during engine ground turn-up require protecting your hearing. The best precaution is wearing proper personal protective equipment designed for hearing protection, such as rated earplugs or earmuffs, to reduce the sound reaching your ears and limit exposure time. This directly addresses the risk of noise-induced hearing loss by providing attenuation at the source of exposure and ensuring you stay within safe hearing limits.

The other statements cover different safety concerns: staying a safe distance from intakes helps prevent being pulled into the engine, the area behind the tailpipes being hazardous after shutdown relates to heat and fumes, and standing in line with the exhaust tailpipe would increase exposure to heat, fumes, and noise. None of these directly protect against hearing loss the way appropriate PPE does.