ETSO-2C48a

• ED Decision 2010/010/R found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

#### ETSO-2C48a *ED Decision 2010/010/R* ##### Carbon Monoxide Detector Instruments **1** **Applicability** 1.1General This ETSO gives the requirements for new models of carbon monoxide detector instruments, which are manufactured on or after the date of this ETSO, must meet in order to be identified with the applicable ETSO marking. 1.2Specific This ETSO refers to two basic types of detector instruments: — TYPE A instruments are completely self-contained and carry their own power source and warning system. — TYPE B instruments are powered by the aircraft power supplies including the alarm system. **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 See [Appendix 1](#_DxCrossRefBm920220970) 3.1.2 Environmental Standard See CS-ETSO Subpart A paragraph 2.1 and [Appendix 2](#_DxCrossRefBm920220969) 3.1.3 Computer Software See CS-ETSO Subpart A paragraph 2.2 3.1.4 Electronic Hardware Qualification 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 Failure of the function defined in paragraph 3.1.1 of this ETSO has been determined to be a minor failure condition. **4. Marking** 4.1 General Marking is detailed in CS-ETSO Subpart A paragraph 1.2 4.2 Specific The component must be permanently and legibly marked with the equipment class as defined in paragraph 1.2 of this ETSO. **5 Availability of Referenced Document** See CS-ETSO Subpart A paragraph 3 [Amdt ETSO/6]