ETSO-C44c A1

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

#### ETSO-C44c A1 *ED Decision 2013/012/R* ##### **Fuel Flowmeters** **1 Applicability** This ETSO gives the requirements which fuel flowmeters that are 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 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 Standards set forth in [Appendix 1](#_DxCrossRefBm920220726). 3.1.2 Environmental standard The Fuel Flowmeter must be tested in accordance with SAE AS407C “Fuel Flowmeters” from July 1, 2001, unless otherwise specified by Appendix 1 to this ETSO, SAE AS1055D “Fire Testing of Flexible Hose, Tube Assemblies, Coils, Fittings, and Similar System Components” (sections 4 and 5) from June 1997, and the applicable environmental test procedure as specified by paragraph 2.1 of CS-ETSO, Subpart A, unless otherwise specified by Appendix 1 to this ETSO. 3.1.3 Software If the equipment design includes a digital computer, see CS-ETSO, Subpart A, paragraph 2.2, for software development. 3.1.4 Airborne Electronic hardware See CS-ETSO, Subpart A, paragraph 2.3. 3.2 Specific 3.2.1 Failure condition classification See CS-ETSO, Subpart A, paragraph 2.4. **4 Marking** 4.1 General Marking is detailed in CS-ETSO, Subpart A, paragraph 1.2. 4.2 Specific None. **5 Availability of referenced document** See CS-ETSO, Subpart A, paragraph 3. [Amdt ETSO/3] [Amdt ETSO/7] [Amdt ETSO/8]