During 1992 and 1993 there was an increase in the frequency of
reported occurrences involving co-ordination between Australian and
Indonesian ATS. Although some involved aircraft travelling from
Australia to Indonesia, the majority (92%) involved aircraft
travelling from Indonesian airspace into the Australian FIR.

The CAA Australia and the Indonesia Directorate General of Air
Communications are signatories on a LOA between the two countries.
This LOA supplements ICAO documents in respect to separation
standards and co-ordination procedures and is - updated
periodically. The latest update was on 18 December 1993 (see
Appendix 1)-

The CAA have sent a series of delegations to Indonesia to liaise
with their ATS authorities. These visits have included several
briefing sessions to all levels of Indonesian ATS from the Director
Aviation Safety to operational controllers. Specific attention has
been paid to boundary conflict situations and the importance of
correct and timely co-ordination, all of which are covered in the
LOA. In August 1992, a major visit to the Indonesia was undertaken
by CAA staff which resulted in 16 recokendations and 10
observations (see Appendix 2). These were accepted by the
Indonesian authorities. In December 1993 another visit took place
involving CAA supervisory field staff, managers and representatives
of the CAA Quality Assurance section.

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