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Appendix C – Background information on terrain awareness and warning systems (TAWSs)

ED Decision 2022/008/R

(a)     General

This Appendix provides additional references, background information, and guidance for maintenance testing, as appropriate to TAWS installations.

(b)     Related references

(1)               EASA

(i)      ETSO-C151b Terrain Awareness and Warning System (TAWS)

(ii)     ETSO-C92c Ground Proximity Warning, Glide Slope Deviation Alerting Equipment dated 24/10/2003

(iii)     ETSO-C10b Aircraft Altimeter, Pressure Actuated, Sensitive Type dated 24/10/2003

(iv)     ETSO-2C87 Low Range Radio Altimeters dated 24/10/2003

(v)      ETSO-C106 Air Data Computer dated 24/10/2003

(vi)     ETSO-C115b Airborne Area Navigation Equipment using Multi-Sensor Inputs dated 24/10/2003

(vii)    ETSO-C129a Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS) dated 24/10/2003

(viii)   ETSO-C145 Airborne Navigation Sensors Using the Global Positioning System (GPS) Augmented by the Wide Area Augmentation System (WAAS) dated 24/10/2003 – ETSO-C145c Airborne Navigation Sensors Using the Global Positioning System Augmented by the Satellite Based Augmentation System (SBAS) dated 21/12/2010

(ix)     ETSO–C146 Stand-Alone Airborne Navigation Equipment Using the Global Positioning System (GPS) Augmented by the Wide Area Augmentation System (WAAS) dated 24/10/2003 – ETSO-C146c Stand-Alone Airborne Navigation Equipment Using the Global Positioning System Augmented by the Satellite Based Augmentation System (SBAS) dated 21/12/2010

(x)      ETSO-C196a Airborne Supplemental navigation Sensors for Global Positioning System Equipment Using Aircraft-Based Augmentation dated 05/07/2012

(xi)     ETSO-C105 Optional Display Equipment for Weather and Ground Mapping Radar Indicators dated 24/10/2003

(2)     ICAO

Doc 8168 Aircraft Operations Procedures for Air Navigation Services Fifth edition – 2006 Volume II Construction of Visual and Instrument Flight Procedures

(3)     EUROCAE

(i)      ED-98 () User requirements for Terrain and Obstacle Data (any edition - last edition B dated September 2012)

(ii)     ED-76 Standards for processing aeronautical data dated October 1998 (identical to RTCA DO-200A)

(4)     RTCA

DO-161A Minimum Performance Standards-Airborne Ground Proximity Warning Equipment dated 27/05/1976

[Issue: CS-ACNS/4]
Details
Source-Title: Appendix C - Background information on terrain awareness and warning systems (TAWSs) View latest amendments
Erulesid: ERULES-1963177438-15835 Compare versions
Domain: Air traffic management/Air navigation services
Amendedby: CS Issue 4
Applicabilitydate: 6 April, 2022
Entryintoforcedate: 6 April, 2022
Regulatorysource: ED Decision 2022/008/R Navigate
Regulatorysubject: CS-ACNS
Typeofcontent: AMC to CS (Acceptable means of compliance to certification specification)
Origin: EASA
Category: EAR