User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
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6--5
Table 6--1. TCAS Aural and VSI/TRA Annunciations (cont)
Condition Notes
VSI/TRA Annunciation
AuralCondition Notes
ColorCenter
Upper
Right
Upper
Left
Aural
RA Only
(TA Display
Control to OFF)
RA ONLY White VSI/TRA displays
resolution advisories only.
RA Fail RA FAIL VSI FAIL Yellow No resolution advisories
displayed.
T raffic Display
Failure
TD FAIL Yellow No traffic advisories
displayed.
Single VSI/TRA
Failure (Dual VSI
Aircraft)
Normal X across
failed
display
Red On failed side, all
symbology removed and
replaced with a large red
X and hex--coded failure
number . TCAS
operational on good side.
Dual VSI/TRA
Failure (or Single
on Single VSI
Aircraft)
None X across
both
displays
Red All symbology removed
from both displays and
replaced with a large red
X and failure code. TCAS
is not operational.
Flight Deck Lamp
Test
Normal Display full
white
During Flight Deck lamp
test, display goes full
white and displays no
symbology.
TCAS SELF--TEST (Note 1.)
TCAS Test Mode
(First Second)
TCAS
TEST
TCAS
TEST
White TCAS system self--test.
TCAS Test Mode
(2 to 8 Seconds)
TCAS
TEST
White TCAS test pattern shown.
TCAS Test Mode
(at 8 Seconds)
TCAS
TEST
PASS/
FAIL
TCAS
TEST
TCAS test pattern
removed and TCAS
returns to normal
operation unless the test
switch is held, the aircraft
is on the ground, and
TCAS is in STBY.