AMC 25.1723 Flammable fluid protection: EWIS

• ED Decision 2008/006/R found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)

AMC 25.1723 Flammable fluid protection: EWIS ED Decision 2008/006/R [CS 25.1723](#_DxCrossRefBm1709821871) requires that EWIS located in areas where flammable fluid or vapours might escape must be considered to be a potential ignition source. As a result, these EWIS components must meet the requirements of CS 25.863. [CS 25.863](#_DxCrossRefBm1709821126) requires that efforts be made to minimise the probability of ignition of fluids and vapours, and the hazards if ignition does occur. See [CS 25.1707](#_DxCrossRefBm1709821473) for the separation requirements between EWIS and flammable fluids. EWIS components located in fuel vapour zones should be qualified as explosion proof, where appropriate, in accordance with Section 9 of EUROCAE ED-14 / RTCA Document DO-160 or other equivalent approved industry standard. The possibility of contamination with flammable fluids due to spillage during maintenance action should also be considered. [Amdt 25/5]