Honeywell International Inc. 9PGTPA-100A Manuale Utente

Pagina di 108
Page 2039
1 Dec 2003
34-45-4
7
MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
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5 Operate applicable aircraft circuit breakers to apply the power to TCAS 
processor, traffic and resolution advisory displays, Mode S transponder 
subsystem, and all other aircraft equipment connected to the TCAS processor 
and Mode S transponder subsystem.  Check that circuit breakers stay closed.
6 Let enough time for the equipment warm-up.  The equipment in the TCAS 
system requires one minute for the equipment warm-up.  The external sensors 
can necessary more than one minute warm-up time
(b) Manual Test
1 On the traffic display screen, TCAS STBY mode annunciation must be visible.
2 Check that the brightness of the traffic display can be controlled by the applicable 
control.  Intensity of the traffic display on the TA/VSI is controlled by the aircraft 
dimmer switch.  Intensity of the traffic display on the PPI or dedicated display is 
controlled by the BRT control on the display control panel.
3 On the transponder/TCAS control unit, the ATC FAIL lamp must extinguished.
4 On transponder/TCAS control unit, turn the function selector switch to TA 
position.  The following conditions must be:
a Traffic display shows TA ONLY.
b RA OFF flag is present on RA/VSI.
c
Transponder/TCAS control panel ATC FAIL lamp is 
extinguished.
d TA/VSI and RA/VSI red and green eyebrows are 
extinguished.
e No fault or fail annunciations are present on the traffic display.
f
TA/VSI and RA/VSI vertical speed needle shows 0 vertical 
speed.
g The traffic can be shown on the traffic display is necessary for 
TCAS processor strapping configuration and if traffic is in the 
area:
Nonthreat Traffic, shown as an open white diamond.
Proximity Intruder traffic, shown as a filled white diamond.
Traffic Advisory (TA) traffic, shown as a filled yellow circle.
NOTE: Other than for the TEST mode, Resolution Advisory 
(RA) traffic is never shown while the aircraft is on the 
ground.  The RA symbol is a solid red square.