On 14 February 2007 at about 1127 Eastern Daylight-saving Time,
the pilot of a Cessna Aircraft Company 182T (182) was positioning
to conduct a sector entry for an area navigation (RNAV) global
navigation satellite system (GNSS) arrival procedure to runway 06
at Camden Aerodrome, NSW. The aircraft was approaching the
aerodrome from the east. At the same time, the pilot of a Cessna
Aircraft Company 210L (210) was approaching Camden from the
south-west with the intention of conducting a Camden runway 06
straight-in RNAV (GNSS) approach. The two aircraft had similar
estimated times of arrival at the approach commencement waypoint.
They were both being operated under the instrument flight rules
(IFR), in Class G airspace.
The air traffic controller provided the pilots with mutual radar
based traffic information. The pilot of the 210 contacted the
controller and was provided with traffic information about the 182.
The pilot of the 182 climbed the aircraft to minimise the risk of a
collision as he was unsure of the intentions of the pilot of the
210. Recorded radar data showed that, when the aircraft passed,
there was 500 ft vertically and 2.1 NM laterally between them.