---
title: "ETSO-C106a — CS-ETSO · Avioverse"
description: "Air Data Computer 1 Applicability This ETSO provides the requirements that air data computers that are designed and manufactured on or after the date of…"
url: "https://avioverse.aero/regulations/easa/cs-etso/subpart-b/etso-c106a"
---

# ETSO-C106a

European Technical Standard Orders (CS-ETSO) · CS-ETSO · EAR revision 1 Oct 2026

IR Implementing rule

## ETSO-C106a

Air Data Computer

1 Applicability

This ETSO provides the requirements that air data computers 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

The 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

The applicable standard is that provided in SAE AS8002B ‘Air Data Computer’, dated 28 April 2020.

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.

3.2 Specific

None.

4 Marking

4.1 General

See CS-ETSO, Subpart A, paragraph 1.2.

4.2 Specific

Marking of the type of air data computer is required (i.e. Type 1 or Type 2).

5 Availability of referenced document

See CS-ETSO, Subpart A, paragraph 3.

\[Amdt ETSO/8]

\[Amdt ETSO/17]

IR · ETSO-C106a — CS-ETSO · ED Decision 2022/018/R · CS-ETSO Easy Access Rules · EAR revision 1 Oct 2026

[All rules in SUBPART B – LIST OF ETSOs](https://avioverse.aero/regulations/easa/cs-etso/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 1 Oct 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.