Which environmental standard applies to TCAS I equipment under this ETSO?

The environmental standard is specified in CS-ETSO Subpart A paragraph 2.1.

Which software and electronic hardware standards apply to TCAS I equipment?

Software standards are in CS-ETSO Subpart A paragraph 2.2, and electronic hardware standards are in CS-ETSO Subpart A paragraph 2.3.

What is the applicability date for equipment to be identified with the ETSO marking under this ETSO?

The ETSO applies to active traffic alert and collision avoidance system airborne equipment designed and manufactured on or after the date of this ETSO.

ETSO-C118a

Q: What minimum performance standard must active TCAS I airborne equipment meet to be eligible for ETSO marking?

The equipment must meet the standards in RTCA DO-197A, Minimum Operational Performance Standards for An Active Traffic Alert and Collision Avoidance System I (Active TCAS 1), Sections 2.1 and 2.2, dated September 12, 1994, as modified by Change 1 dated July 29, 1997.

Q: Which test procedures apply to active TCAS I equipment under this ETSO?

The equipment test procedures are set forth in RTCA DO-197A, Minimum Operational Performance Standards for An Active Traffic Alert and Collision Avoidance System I (Active TCAS 1), Section 2.4, dated September 12, 1994, as modified by Change 1 dated July 29, 1997.

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ETSO-C118a

ED Decision 2018/002/R

Traffic Alert and Collision Avoidance System (TCAS) Airborne Equipment, TCAS I

1 Applicability

This ETSO provides the requirements which active traffic alert and collision avoidance system airborne equipment 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 CS-ETSO Subpart A.

2.2 Specific

None.

3 Technical Conditions

3.1 General

3.1.1 Minimum Performance Standard

Standards set forth in Radio Technical Commission for Aeronautics (RTCA) Document DO-197A, Minimum Operational Performance Standards for An Active Traffic Alert and Collision Avoidance System I (Active TCAS 1) Section 2.1 and 2.2, dated September 12, 1994, as modified by Change 1 dated July 29, 1997.

Equipment test procedures set forth in Radio Technical Commission for Aeronautics (RTCA) Document DO-197A, Minimum Operational Performance Standards for An Active Traffic Alert and Collision Avoidance System I (Active TCAS 1) Section 2.4, dated September 12, 1994, as modified by Change 1 dated July 29, 1997.

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 Electronic Hardware

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 is a major failure condition for malfunctions causing the display or annunciation of hazardously misleading information in airborne aircraft.

Loss of the function defined in paragraph 3.1.1 is a minor failure condition.

4 Marking

4.1 General

Marking is 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/13]

Details

Source-Title: ETSO-C118a View latest amendments

Erulesid: ERULES-1963177438-9290 Compare versions

Domain: Initial airworthiness

Amendedby: Amendment 13

Applicabilitydate: 20 February, 2018

Entryintoforcedate: 20 February, 2018

Regulatorysource: ED Decision 2018/002/R Navigate

Regulatorysubject: CS-ETSO

Typeofcontent: CS (Certification specification)

Origin: EASA

Category: EAR