ETSO-C196b

Airborne Supplemental Navigation Sensors for Global Positioning System Equipment Using Aircraft-Based Augmentation

1 Applicability

This ETSO provides the requirements which airborne supplemental navigation sensors for Global Positioning System equipment using aircraft-based augmentation 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.

Note: Revision b provides applicants with the option to use an ETSO-2C206 GNSS circuit card assembly (CCA) as part of their ETSO application. There is no technical change to the MOPS in comparison with ETSO-C196a.

2 Procedures

2.1 General

The applicable procedures are detailed in CS-ETSO, Subpart A.

2.2 Specific

This section applies only for ETSO articles that use an ETSO-2C206 GNSS CCA.

Applicants who use an ETSO-2C206 GNSS CCA will need to coordinate with their GNSS CCA supplier for at least the following aspects:

2.2.1 Access to the Information of the Selected ETSO-2C206 CCA

The applicant is responsible for establishing the necessary communication channels with the ETSO-2C206 holder company. Applicants who use an ETSO-2C206 SBAS CCA will need to coordinate with their SBAS CCA supplier to obtain the documentation that supports ETSO-2C206.

The applicant’s organisation shall establish a means of communication to obtain timely notifications of design changes, open problem reports (at least the ones that impact the usage of the CCA), occurrence reports and airworthiness directives that affect or relate to the ETSO-2C206 article.

2.2.2 Assessment of Design Changes

The applicant shall perform an impact analysis of the design changes to the ETSO-2C206 article, and shall perform the necessary development life-cycle activities that are impacted by the ETSO-2C206 changes.

Note: If a major change (as assessed per point 21.A.611) is applied to the ETSO-2C206 article, which is installed in the ETSO-C196b article, it is also systematically considered to be major for the ETSO-C196b function.

2.2.3 Assessment and Reporting of Open Problem Reports (OPRs)

The applicant shall perform the assessment of the ETSO-2C206 CCA OPRs. The applicant shall report the resulting OPRs that affect the ETSO-C196b article.

3 Technical Conditions

3.1 Basic

3.1.1 Minimum Performance Standard

The applicable standards are those provided in the Radio Technical Commission for Aeronautics (RTCA) document DO-316, Minimum Operational Performance Standards (MOPS) for Global Positioning System/Aircraft Based Augmentation System Airborne Equipment, dated 14 April 2009, Section 2.

Use of an ETSO-2C206 GNSS CCA functional sensor

ETSO-196b applicants have the option to use an ETSO-2C206 GNSS CCA functional sensor. Applicants who choose to use an ETSO-2C206 GNSS CCA can take credit for certification compliance by virtue of the ETSO-2C206 ETSOA for:

— meeting the MPS Section 2.1 requirements;

— the development assurance of the hardware/software;

— the classification of the failure conditions;

— the MPS Section 2.3 performance testing (functional qualification), except that specified in Appendix 1 to this ETSO; and

— partial environmental testing performed on the ETSO-2C206 GNSS CCA.

After the integration of the ETSO-2C206 CCA in the ETSO-196b article, the applicant shall perform the testing described in Appendix 1. The applicant shall also complete the environmental qualification testing. The testing shall include the detailed functional test procedures delivered by the ETSO-2C206 GNSS CCA provider. This testing is required to address the paragraphs of this ETSO that are not covered by the items listed above.

Note: An end-use equipment manufacturer that uses an ETSO-2C206 SBAS CCA functional sensor assumes full responsibility for the design and the function under their ETSO-C196b authorisation.

3.1.2 Environmental Standard

See CS-ETSO, Subpart A, paragraph 2.1.

Test to EUROCAE ED-14( ) Sections 9 and 26 are considered to be optional. Tests to Sections 10, 11, 12, 13, and 14 are required only when the component is installed on the outside of the aircraft, such as the antenna.

3.1.3 Software

See CS-ETSO, Subpart A, paragraph 2.2.

Applicants who use ETSO-2C206 GNSS CCA functional sensors may use the ETSO 2C206 authorisation as substantiation for compliance with the software development assurance aspects of the CCA.

3.1.4 Airborne Electronic Hardware

See CS-ETSO, Subpart A, paragraph 2.3.

Applicants who use ETSO-2C206 GNSS CCA functional sensors may use the ETSO 2C206 authorisation as substantiation for compliance with the hardware development assurance aspects of the CCA.

3.2 Specific

3.2.1 Failure Condition Classification

See CS-ETSO, Subpart A, paragraph 2.4.

A failure of the function defined in paragraph 3.1.1 of this ETSO has been determined to be a major failure condition for a malfunction of oceanic/remote, en route and terminal navigation and lateral navigation (LNAV) approaches.

A failure of the function defined in paragraph 3.1.1 of this ETSO has been determined to be a minor failure condition for a loss of navigation of oceanic/remote, en route and terminal navigation and lateral navigation (LNAV) approaches.

Note: These failure condition classifications are considered to be the minimum classifications. Guidance for the installation of navigation systems at the aircraft level (e.g. Certification Specifications and Acceptable Means of Compliance for Airborne Communications, Navigation and Surveillance (CS ACNS)) could require a different failure condition classification.

3.2.2 Additional Specific

Barometric-aided Fault Detection and Exclusion (FDE). If the equipment uses barometric-aiding to enhance the availability of FDE, then the equipment must meet the requirements in RTCA document DO-316, Appendix G.

4 Marking

4.1 General

See CS-ETSO, Subpart A, paragraph 1.2.

4.2 Specific

None.

5 Availability of Referenced Documents

See CS-ETSO, Subpart A, paragraph 3.

[Amdt ETSO/7]

[Amdt ETSO/16]