ETSO-2C208

• ED Decision 2022/018/R found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

#### ETSO-2C208 *ED Decision 2022/018/R* ##### Electrical Hoist Equipment **1 Applicability** This ETSO provides the requirements for electrical hoist equipment that is designed and manufactured on or after the date of this ETSO. To be eligible for the ETSO, the hoist equipment shall be equipped with an overload protection device. Hoist equipment includes the hoist itself, load attachment means (cable, hook, etc.), control and monitoring interfaces, a structural interface to attach the hoist to the boom/rotorcraft structure and the overload protection device. The boom itself is not considered to be a part of the hoist equipment. Electrical hoist equipment designed in accordance with this ETSO must be identified with the applicable ETSO marking. This hoist ETSO covers articles which are intended to be operated in the complete range of possible hoist missions. **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 standard for hoist equipment is provided in SAE Aerospace Standard (AS) 6342, Minimum Operation Performance Standard for Helicopter Hoist Systems, dated December 2020, as modified by Appendix 1 to this ETSO. Whenever the term ‘hoist’ is used in this SAE document, it is equivalent to the hoist equipment. 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. 3.1.5 Development Assurance See CS-ETSO, Subpart A, paragraph 2.4. 3.2 Specific 3.2.1 Failure Condition Classification See CS-ETSO, Subpart A, paragraph 2.4. The failure of the function defined in paragraph 3.1.1 of this ETSO is: — Catastrophic for loss or malfunction of the hoist equipment (including the overload protection device), which could lead to serious injuries or a fatality (including the HEC). In addition, no single failure of the hoist equipment shall result in a Catastrophic Failure Condition. For the compliance demonstration of structural parts / structural elements, the single failure criteria should be addressed through, but not limited to, static, fatigue, damage tolerance and critical parts requirements. Supporting information is provided in AMC 27/29.865(c)(2) and CS 27/29.1309. 3.2.2 Equipment Safety Assessment The hoist manufacturer shall conduct an Equipment Safety Assessment, including a systematic, comprehensive evaluation of the hoist equipment to show that the safety objectives from the Functional Hazard Assessment (FHA) of the ETSO article and the derived safety requirements are met. The latest revision of SAE ARP4761 provides guidance for the safety assessment process. Any assumptions taken by the hoist manufacturer shall be documented in the safety assessment. See also CS-ETSO, Subpart A, paragraph 2.4. Note: Particular aircraft installations will drive additional, and more stringent, safety requirements for the hoist equipment. The ETSO applicant may elect to comply with these more severe aircraft installation requirements for the hoist equipment in the ETSO article FHA. If this option is selected, this shall be identified in the ETSO Certification programme, and demonstrated within the ETSO data package. Compliance with non-ETSO requirements will also be assessed during the approval (TC/STC) of the installation. 3.2.3 Installation Manual The applicant shall document in an installation manual all information needed to substantiate the installation of the hoist equipment on a rotorcraft, including the following: — Electrical interface definition and structural interface loads from the hoist system to the rotorcraft hoist attachment; — Definition of the control and monitoring interfaces (per Appendix 1, Section 3.4.1.1); — Maximum permanent deformation of the hoist after the application of the crash load factor (per Appendix 1 — Table 1 Section 3.6); — Impact speed for the bird strike test (per Appendix 1 — Table 1 Section 3.6); — Control means for the PQRS and BQRS (per Appendix 1 — Table 1 Section 4.6). — The maximum rated load. **4 Marking** 4.1 General See CS-ETSO, Subpart A, paragraph 1.2. 4.2 Specific **5 Availability of Referenced Documents** See CS-ETSO, Subpart A, paragraph 3. [Amdt ETSO/17]