scope:

FOREWORD

This document was prepared jointly by EUROCAE Working Group 92 "VDL Mode 2 airborne MOPS implementation support" and RTCA SC- 214 "Standards for Air Traffic Data Communication Services", and was approved by the Council of EUROCAE on 26 March 2014.

EUROCAE is an international non-profit making organisation in Europe. Membership is open to manufacturers and users of equipment for aeronautics, trade associations, national civil aviation administrations, and, under certain conditions, non-European organisations. Its work programme is principally directed to the preparation of performance specifications and guidance documents for civil aviation equipment, for adoption and use at European and worldwide levels.

The findings of EUROCAE are resolved after discussion amongst Members of EUROCAE and in collaboration with RTCA Inc, Washington D.C., and/or the Society of Automotive Engineers (SAE), Warrendale PA, U.S.A., through their appropriate committees.

This change aims at fixing some tests and editorial issues following alignment of the VDL Mode 2 standards (ICAO, EUROCAE, RTCA, AEEC). This ensures that ED-92B is notably in line with the ICAO 9776 version 2 which has been released after ED-92B. This change also incorporates comments from suppliers which have used ED-92B in their test campaign and therefore identified inconsistencies in some test procedures. 5. In parallel, RTCA DO-281B applies the change 1 in order to maintain both documents aligned.

EUROCAE performance specifications and other documents are recommendations only. EUROCAE is not an official body of the European Governments. Its recommendations are valid as statements of official policy only when adopted by a particular government or conference of governments.