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AAS 1.09 REMOVAL OF GROUND BASED AIDS

The implementation of GNSS is precipitating the removal of certain ground based navigation aids. IFATCA is concerned that as these GNSS systems are subject to natural temporary degradation and unserviceabilities that there should not be a reliance on a sole … Continued

ATS 3.34 TERRAIN AND OBSTACLE CLEARANCE RESPONSIBILITIES

During the work on SID and STAR phraseology changes and cancellation of level restrictions, fundamental issues arose regarding ICAO standards and procedures for terrain and obstacle clearance. ICAO provisions presently have problems: Currently most responsibility lies with pilots. Implied responsibility. … Continued

ATC Aspects of Interception of Civil Aircraft

26TH ANNUAL CONFERENCE, Nairobi, Kenya, 27-30 April 1987 WP No. 60 ATC Aspects of Interception of Civil Aircraft The subject of ATC aspects of interception of civil aircraft was placed on the SC 1 work programme by the 1986 … Continued

TCAS and ACAS Procedures

34TH ANNUAL CONFERENCE, Jerusalem, Israel, 27-31 March 1995 WP No. 88 TCAS and ACAS Procedures Introduction This working paper will outline 3 additions to the current policy statement, as well as a revision to an existing policy statement, their necessity … Continued

Three Main Systems of Flight Level (FL) Determination

35TH ANNUAL CONFERENCE, Tunis, Tunisia, 15-19 April 1996 WP No. 96 Three Main Systems of Flight Level (FL) Determination There exists at present three main systems of flight level (FL) determination. The FL expressed in feet , mainly used … Continued

Removal of Ground Based Aids

38TH ANNUAL CONFERENCE, Santiago, Chile, 15-19 March 1999 WP No. 98 Removal of Ground Based Aids Introduction ICAO is proceeding with the definition of global navigation satellite systems (GNSS). The implementation of GNSS may allow the removal of certain ground … Continued

Monitor the Developments in the Operational use of ASAS

42ND ANNUAL CONFERENCE, Buenos Aires, Argentina, 17-21 March 2003 WP No. 93 Monitor the Developments in the Operational use of ASAS Presented by SC1 Introduction 1.1 WP 78 presented in Committee B at IFATCA’s 41st Annual Conference, Report of Separation … Continued

Review Policy on ACAS Phraseology

47TH ANNUAL CONFERENCE, Arusha, Tanzania, 10-14 March 2008 WP No. 95 Review Policy on ACAS Phraseology Presented by TOC Summary On 22nd November 2007, Amendment 5 of ICAO Doc 4444 Air Traffic Management was included. One of the changes with … Continued

Study Visual Separation on Approach

51ST ANNUAL CONFERENCE, Kathmandu, Nepal, 12-16 March 2012 WP No. 91 Study Visual Separation on Approach Presented by TOC Summary After a presentation on Airborne Separation Assistance System (ASAS) during the annual IFATCA Conference in Amman in 2011, it was … Continued

Radio Mandatory Zones / Transponder Mandatory Zones

59TH ANNUAL CONFERENCE, Singapore, 30 March – 3 April 2020 WP No. 88 Radio Mandatory Zones / Transponder Mandatory Zones Presented by TOC IMPORTANT NOTE: The IFATCA Annual Conference 2020 in Singapore was cancelled. The present working paper was … Continued