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Tcas system test ok, Tcas system test fail – BendixKing CAS 66A User Manual

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At the conclusion of a successful Self Test, a synthesized voice
announces:

“TCAS SYSTEM TEST OK”

FAILURE CONDITIONS:

Should a failure be detected during self test, the audio message says:

“TCAS SYSTEM TEST FAIL”

A “TCAS” flag will be annunciated on the traffic display. A self test fail-
ure may indicate that the auxiliary equipment required for TCAS is not
operational. Check the associated equipment.

If the traffic display is a radar indicator, the appropriate failure mes-
sage will be displayed. See WX & TCAS Message Format in Section
II: Controls and Displays.

Should a VSI failure be detected at any time, the VSI flag will appear
on the TA/VSI (IVA 81A/C/D). A “VSI” flag is not caused by the TCAS
processor.

CP 66A/B CONTROL PANEL TEST

Pressing the TST button on the CP 66A/B initiates a comprehensive
TCAS self test lasting approximately eight seconds. The system will
return to the previously selected modes when the test is complete.

IVA 81A/C/D & TID 66A/D OPTIONAL LAMP TEST

The optional lamp test produces an array of traffic in the pattern
shown. The climb/descend color bands alternate between green and
red, lasting for two seconds each. The bands are blank for a one sec-
ond interval in between.

Note: The VSI function of the TA/VSI ( IVA 81A/C/D) will not be
observed during the lamp test.

RADIO ALTIMETER

If RALT is installed and is inoperative, TCAS will be Inoperative.

Appendix

CAS 66A Pilot's Guide

Effective Date 2/06

006-08746-0000 Rev 7

49

TCAS I Pilots Guide 2/8/06 3:52 PM Page 49