These aircraft are suitable for passengers and cargo commercial transport. The A320 Family of aircraft are subsonic single-aisle aircraft. The Airbus A320 family are narrow-body airliners designed and produced by Airbus. NEO means “New Engine Option” with CFMI-1A or P&W 1100G. And previous A320 was renamed to A320ceo.ĬEO means “Current Engine Option” with CFM-56 and 2 others. In 2010, Airbus announced new engine options for the A320, consisting of CFM LEAP-1A or Pratt & Whitney PW1100G, hence the designation A320neo. If you have safety and health questions about your job contact CDC-INFO.The original A320, launched in 1984, offered a choice of CFM-56 or IAE V2500 engines.Commercial Aviation: Pilots’ and Flight Attendants’ Exposure to Noise aboard Aircraft.Federal Aviation Administration: Hearing and Noise in Aviation.Journal of the Canadian Acoustical Association: In-cabin noise levels during commercial aircraft flights.NIOSH Health Hazard Evaluations of Aircraft:.You or your doctor may also contact us for more information. Sharing this and other information with your doctor may be useful. Make sure your doctor knows that you work as a crewmember. Follow up with your doctor if you have concerns about your noise exposures.Learn more about protecting your hearing from the NIOSH Noise and Hearing Loss Prevention Website.When you have a choice, moving to other locations in the cabin may reduce your noise levels.
The Airbus A321 study suggests that noise levels are higher in the rear of the cabin, near and behind the engines and propellers, and near windows.Wear hearing protection during take-off and landing.What you can do to reduce exposure to noise on aircraft Although we know general ranges of noise levels on aircraft, noise levels have not been measured on all aircraft and can vary.If you are exposed to aircraft noise and have health problems, we can’t tell if it was caused by your work conditions or if it was caused by something else. Hearing loss accumulates over a lifetime.We also recommend a 3 dBA exchange rate so that every increase by 3 dBA doubles the amount of the noise and halves the recommended amount of exposure time.We recommend that all worker exposures to noise be controlled below a level equivalent to 85 dBA for eight hours to minimize occupational noise induced hearing loss.What are the recommended levels for noise at work? Sound insulation also varies among aircraft. The outside of aircraft engines (around 140 dB at takeoff) and conditions on other aircraft may have higher or lower noise levels. A study of noise on Airbus A321 aircraft reported levels of 60-65 decibels (dBA) before takeoff 80-85 dBA during flight and 75-80 dBA during landing.Hearing protection, especially during takeoff and landing, is one option for reducing these exposures. Noise levels were generally lower than NIOSH and/or OSHA recommended or regulated exposure levels, but some measurements briefly approached or surpassed these levels. NIOSH conducted noise surveys in 20 on regional jets and turboprop aircraft.Announcements and mechanical noises from food and beverage service are other sources of noise. When airborne, the aircraft engines and high speed turbulence over the fuselage are the largest sources of noise on aircraft.On the ground, aircraft engines, takeoff preparations, and braking are sources of noise on aircraft.Here you can learn more about how aircrew can lower exposure to aircraft noise. There are many sources of noise during flight operations. Occupational hearing loss is one of the most common work-related injuries in the United States. Photo courtesy of Julie Haggerty (NCAR) What you need to know
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