The traffic indications provide a view of the situation in the
surveillance area. The aircraft present in this area are represented
by symbols and associated tags. The position of the symbols on the
display enables to determine the distance (range) and the bearing in
the airspace. Both color and shape of the symbols are used to
discriminate traffic according to the level of threat. The tags
indicate relative altitude and vertical trend.
The various symbols used according to the type of intruder are
presented below:
(Ref. Fig. 051)
-Other traffic for intruders with a range greater than 6NM or a vertical distance of at least +/- 1200 ft.
-Proximate Traffic for intruders which do not enter in the Traffic Advisory (TA) or Resolution Advisory (RA) categories. Their range is within 6NM. Proximate traffic intruders and other traffic intuders can be displayed :
1EFF : ALL 1 31-65-00Page A7 1 1 Aug 01/05 1 1 1CES 1
R ND - TCAS Indications Figure 049
1EFF : 1 1 1CES ALL 1 111 31-65-00 Page A8 Feb 01/05
R ND - TCAS Indications Figure 050
1EFF : 1 1 1CES ALL 1 111 31-65-00 Page A9 Feb 01/05
R ND - TCAS Symbology Figure 051
1EFF : 1 1 1CES ALL 1 111 31-65-00 Page A10 Feb 01/05
-permanently if the FULL TIME DISPLAY function is selected on the ATC/TCAS control unit. or
- only when a RA or TA type intruder is detected
-Resolution Advisory (RA) .corrective : the pilot must modify present vertical speed .preventive : the pilot must avoid certain vertical speed ranges. Trajectory correction or holding visual orders are accompanied by synthesized voice announcements generated by the TCAS computer.
-Traffic Advisory (TA) for intruders near the aircraft, which do not represent an immediate threat but may become a collision threat. Off scale intruders are represented by a half-symbol displayed at the edge of the ND mask (Ref. Fig. 052)
NOTE : The lower section of this mask can show different
____ configurations to display FM or TCAS messages.
A white range ring is displayed around the aircraft symbol at 2.5 NM
(Ref. Fig. 053)
Only the eight most dangerous intruders can be displayed.
(2) TCAS test A test can be initiated to check the TCAS computer. During this test the ND shows a specific image on which four intruders are displayed :
R (Ref. Fig. 054)
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
(Ref. Fig. 055)
**ON A/C ALL
-an other traffic aircraft
-
a proximate traffic aircraft
-
a traffic advisory aircraft
-
a resolution advisory aircraft.
1EFF : ALL 1 31-65-00Page A11 1 1 Aug 01/05 1 1 1CES 1
R ND - TCAS Off Scale Intruders Figure 052
1EFF : 1 1 1CES ALL 1 111 31-65-00 Page A12 Feb 01/05
R ND - TCAS Display Figure 053
1EFF : 1 1 1CES ALL 1 111 31-65-00 Page A13 Feb 01/05
ND - TCAS Test Figure 054
R 1EFF : 1 1 1CES ALL 1 111 31-65-00 Page A14 Aug 01/05
ND - TCAS Test
Figure 055
R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 31-65-00Page A15 1201-299, 301-302, 1May 01/05 1 1 1CES 1 **ON A/C ALL
Post SB 34-1147 For A/C 001-004,051-060,
J. GPS Primary Function
(Ref. Fig. 056)
R **ON A/C 106-149, 303-399, 401-499,
(Ref. Fig. 057)
**ON A/C ALL
Post SB 34-1147 For A/C 001-004,051-060,
GPS (Global Positionning System) is considered as "primary" when its A/C position is delivered with appropriate accuracy and integrity. In such a case, a cross-check with other means of navigation is no longer required and GPS position is then used for autopilot operation and display. For the GPS primary function, the ND displays the GPS approaches when appropriate and the status GPS PRIMARY or not.
1EFF : ALL 1 31-65-00Page A16 1 1 Aug 01/05 1 1 1CES 1
R Navigation Display - GPS Primary Function Figure 056
1EFF : 1 1 1CES ALL 1 111 31-65-00 Page A17 Feb 01/05
Navigation Display - GPS Primary Function
Figure 057
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