IRImplementing rule
ETSO-C3e
1 Applicability
This ETSO provides the requirements which Turn And Slip Instruments 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
Applicable procedures are detailed in Subpart A.
- 2.2 Specific
None.
3 Technical Conditions
- 3.1 Basic
- 3.1.1 Minimum Performance Standard
Standards set forth in the SAE Aerospace Standard AS8004, 'Turn and Slip Instruments', dated September 1975.
- 3.1.2 Environmental Standard
See CS-ETSO, Subpart A, paragraph 2.1.
- 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
None
3.2.1 Failure Condition Classification
See CS-ETSO, Subpart A, paragraph 2.4.
Failures of the function defined in paragraph 3.1.1 of this ETSO resulting in misleading or loss of information are minor failure conditions.
4 Marking
- 4.1 General
Marking as detailed in CS-ETSO, Subpart A, paragraph 1.2.
- 4.2 Specific
None.
TURN AND SLIP INSTRUMENT
ED Decision 2016/013/R
5 Availability of Referenced Document
See CS-ETSO, Subpart A, paragraph 3. [Amdt ETSO/11]
IR · ETSO-C3e — CS-ETSO · CS-ETSO Easy Access Rules · EAR revision 14 Aug 2026