Appendix 1 to ETSO-C47a A1 - Minimum Performance Standards (MPSs) for Pressure Instruments - Fuel, Oil and Hydraulic

• ED Decision 2013/012/R found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

###### Appendix 1 to ETSO-C47a A1 – Minimum Performance Standards (MPSs) for Pressure Instruments - Fuel, Oil and Hydraulic *ED Decision 2013/012/R* 1. The MPSs applying to this ETSO are provided in SAE AS408C, Pressure Instruments - Fuel, Oil, and Hydraulic, dated July 1, 2001, except for paragraphs 3.1, 3.1.1, 3.1.2, and 3.2.b. Here are provided the modifications to be applied to the referenced SAE document: <table cellpadding="7" cellspacing="0"> <col/> <col/> <tr valign="top"> <td><p> <b>AS408C </b> </p> </td> <td><p> <b>modification: </b> </p> </td> </tr> <tr valign="top"> <td><p> Title </p> </td> <td><p> Replace “Pressure Instruments – Fuel, Oil, and Hydraulic (Reciprocating Engine Powered Aircraft)” Substitute: “Pressure Instruments – Fuel, Oil, and Hydraulic” </p> </td> </tr> <tr valign="top"> <td><p> Section 1.1 </p> </td> <td><p> Replace “…primarily for use with reciprocating engine powered transport aircraft, …” Substitute: “…for use with civil aircraft,...” </p> </td> </tr> <tr valign="top"> <td><p> <b>AS408C section 7 </b> </p> </td> <td><p> <b>modification: </b> </p> </td> </tr> <tr valign="top"> <td><p> Para 7.13 </p> </td> <td><p> Use test conditions in SAE AS1055 Rev D, “Fire Testing of Flexible Hose, Tube Assemblies, Coils, Fittings, and Similar System Components”, dated June 1, 1997, Sections 4 and 5. </p> </td> </tr> <tr valign="top"> <td><p> <br/> </p> </td> <td><p> The following test conditions from the environmental standards mentioned in paragraph 3.1.2 above are added.</p> </td> </tr> <tr valign="top"> <td><p> Para 7.14 </p> </td> <td><p> Section 16, Power Input. </p> </td> </tr> <tr valign="top"> <td><p> Para 7.15 </p> </td> <td><p> Section 17, Voltage Spike. </p> </td> </tr> <tr valign="top"> <td><p> Para 7.16 </p> </td> <td><p> Section 18, Audio Frequency Conducted Susceptibility – Power Inputs. </p> </td> </tr> <tr valign="top"> <td><p> Para 7.17 </p> </td> <td><p> Section 19, Induced Signal Susceptibility </p> </td> </tr> <tr valign="top"> <td><p> Para 7.18 </p> </td> <td><p> Section 20, Radio Frequency Susceptibility. </p> </td> </tr> </table> 2. The performance of fuel, oil and hydraulic pressure instruments can be enhanced or made superior to this specification, depending on intended application and configuration. [Amdt ETSO/3] [Amdt ETSO/8]