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【范围】
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This document deals with ground and flight test of airplane installed Environmental Control Systems
(ECS), Figure 1. The ECS provide an environment, controlled within specified operational limits of
comfort and safety, for humans, animals, and equipment. These limits include the following: pressure,
temperature, humidity, ventilation air velocity, ventilation rate, wall temperature, audible noise,
vibration, and environment composition (ozone, contaminants, etc.). The ECS are composed of
equipment, controls, and indicators that supply, distribute, recycle and exhaust air to maintain the
desired environment.
1.1 Purpose:
This document defines recommended tests and test procedures for airplane installed ECS. The
purpose of these tests is to:
a. verify system pressure integrity (leakage),
b. verify integration and compatibility of ECS with other airplane systems, and
c. determine overall system performance in conditions representative of those which may be
encountered during operations.
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1.2 Field of Application:
These tests (and procedures) may be used for commercial and military airplane certification (test of
first article) or for production airplane (to ensure built as design) tests. The selection of the
appropriate test conditions, instrumentation, and test procedures depends on a large number of
variables (airplane configuration, system concept, hardware, integration with other on-board
systems, certification or production airplane, etc.). Thus, these are addressed in general terms. This
document is intended to serve as a guide in the planning and conduct of tests. The specification or
contractual or regulatory (Federal Aviation Regulations (FAR), Joint Airworthiness Regulations
(JAR)) requirements should be considered. The test plan and procedure should be coordinated with
the appropriate agency.
Test data may be used to show compliance with the applicable airplane specification, contractual, or
regulatory requirements and to verify analytical simulation models. If the former is intended, it is
extremely important to obtain prior approval of the test plan and procedure from the appropriate
agency.strRefField
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