KTA 970/KMH 980 Pilot’s Guide
Rev 2 006-18273-0000
31
TCAS I Appendix
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 I is not
operational.  Check the associated equipment.    
Should a display failure be detected at any time, the Display Fail flag will
appear on the KMD 550/850.  A “Display Fail” flag is not caused by the
TCAS I processor.  
RADIO ALTIMETER
If RALT is installed and is inoperative, TCAS I will be Inoperative.