This volume describes operational procedures recommended for the guidance of flight operations personnel. It also outlines the various parameters on which. VOLUME I. FLIGHT PROCEDURES. 1. Amendment 13 which becomes applicable on 25 November Insert the following new and replacement pages in. all previous editions of Doc , Volume II. Volume II. Construction of Amendments 1 to 6 incorporated in this edition. 1. 16/4/ ICAO. 7. 10/11/ ICAO.

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Noise has historically been the principal environmental issue for aviation. It remains high on the agenda of public concern.

Noise disturbance can have significant adverse effects on people living close to an airport, including: Doubling the distance between yourself and the source of a noise effectively cuts the intensity of the sound by 6 dBA; i. Annoyance is the most widespread problem caused by environmental noise.


Annoyance reflects the way that noise affects daily activities. People’s social circumstances, their culture and the environment in which they live can all determine the degree of perceived annoyance for a given noise level.

Noise Abatement – SKYbrary Aviation Safety

However, quality of life will suffer when people are disturbed or annoyed by noise. Sleep disturbance caused by environmental noise can also affect the quality and quantity of sleep, leading to drowsiness and poor performance the following day. Environmental Protection, Volume 1 – Aircraft Noise. These apply to aircraft designs and types when they are first approved for operational use, and they have been progressively tightened since the initial ICAO standard was adopted in This was for aircraft designed prior to Sinceany new aircraft designs have been required to meet stricter Chapter 3 or later standards.

On April 1st most aircraft not meeting Chapter 3 standards were phased out by international agreement. From 1 Icwoa more stringent standard Chapter 4 has been applied for new aircraft designs.



This standard will be one third quieter than the existing Chapter 3 standard. Aircraft Operations, Chapter 4, Section 4. Aircraft experiencing an emergency situation are not expected to comply with noise abatement procedures.

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