Pt. 36, App. A

14 CFR Ch. I (1-1-19 Edition)

A36.9.1 When certification test conditions
are not identical to reference conditions, appropriate adjustments must be made to the
measured noise data using the methods described in this section.
A36.9.1.1 Adjustments to the measured
noise values must be made using one of the

methods described in sections A36.9.3 and
A36.9.4 for differences in the following:
(a) Attenuation of the noise along its path
as affected by  - inverse square -  and atmospheric attenuation
(b) Duration of the noise as affected by the
distance and the speed of the airplane relative to the measuring point

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Section A36.9 Adjustment of Airplane Flight
Test Results.