bookworm
7th Jun 2010, 08:15
In Annex 2, the instrument flight rules say:
5.3.2 Communications
An IFR flight operating outside controlled airspace but within or into areas, or along routes, designated by the appropriate ATS authority in accordance with 3.3.1.2 c) or d) shall maintain an air-ground voice communication watch on the appropriate communication channel and establish two-way communication, as necessary, with the air traffic services unit providing flight information service.
(3.3.1.2 refers to designated areas and routes in which a flight plan is required for the purposes of c) flight information, alerting and search and rescue services and d) military coordination)
There is no other mention of comms requirements for IFR in class G.
But in Annex 11, APPENDIX 4. ATS AIRSPACE CLASSES — SERVICES PROVIDED AND
FLIGHT REQUIREMENTS referred to by 2.6 Classification of airspace, shows the "Radio communication requirement" in Class G for IFR to be "Continuous two-way".
These seem inconsistent. What is the ICAO position on the requirement for aircraft to maintain an air-ground voice communication watch in class G outside these designated areas, and by what legal mechanism is the requirement placed on aircraft rather than ATS providers?
5.3.2 Communications
An IFR flight operating outside controlled airspace but within or into areas, or along routes, designated by the appropriate ATS authority in accordance with 3.3.1.2 c) or d) shall maintain an air-ground voice communication watch on the appropriate communication channel and establish two-way communication, as necessary, with the air traffic services unit providing flight information service.
(3.3.1.2 refers to designated areas and routes in which a flight plan is required for the purposes of c) flight information, alerting and search and rescue services and d) military coordination)
There is no other mention of comms requirements for IFR in class G.
But in Annex 11, APPENDIX 4. ATS AIRSPACE CLASSES — SERVICES PROVIDED AND
FLIGHT REQUIREMENTS referred to by 2.6 Classification of airspace, shows the "Radio communication requirement" in Class G for IFR to be "Continuous two-way".
These seem inconsistent. What is the ICAO position on the requirement for aircraft to maintain an air-ground voice communication watch in class G outside these designated areas, and by what legal mechanism is the requirement placed on aircraft rather than ATS providers?