ED Decision 2012/009/R
1 Applicability
This ETSO gives the requirements which Helicopter Terrain Awareness and Warning System (HTAWS) 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.
2.2 Specific
None.
3 Technical Conditions
3.1 Basic
3.1.1 Minimum Performance Standard
Standards set forth in the Radio Technical Commission for Aeronautics (RTCA) Document DO-309, Minimum Operational Performance Standards (MOPS) for Helicopter Terrain Awareness and Warning System (HTAWS) Airborne Equipment, dated 13/03/2008.
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
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 major failure condition.
4 Marking
4.1 General
Marking as 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/7]
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