ETSO-C10c

• ED Decision 2020/011/R found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

#### ETSO-C10c *ED Decision 2020/011/R* ##### Pressure Altimeter System **1 Applicability** This ETSO provides the requirements which pressure altimeter systems that are designed and manufactured on or after the date of this ETSO must meet in order to be identified with the applicable ETSO marking. **2 Procedures** 2.1 General The applicable procedures are detailed in CS-ETSO, [Subpart A](#_DxCrossRefBm920220672). 2.2 Specific None. **3 Technical Conditions** 3.1 Basic 3.1.1 Minimum Performance Standard The applicable standards are those provided in SAE International’s Aerospace Standard AS8009C, Pressure Altimeter Systems, dated 24 May 2016, as amended by [Appendix 1](#_DxCrossRefBm920220687) to this ETSO. 3.1.2 Environmental Standard See CS-ETSO, Subpart A, paragraph 2.1. 3.1.3 Software See CS-ETSO, Subpart A, paragraph 2.2. 3.1.4 Airborne Electronic Hardware See CS-ETSO, Subpart A, paragraph 2.3. 3.2 Specific The declaration of design and performance (DDP) and the installation manual shall state the maximum calibrated altitude. 3.2.1 Failure Condition Classification See CS-ETSO, Subpart A, paragraph 2.4. **4 Marking** 4.1 General See CS-ETSO, Subpart A, Paragraph 1.2. 4.2 Specific None. **5 Availability of Referenced Documents** See CS-ETSO, Subpart A, paragraph 3. [Amdt ETSO/Initial issue] [Amdt ETSO/16]