TCAS

Question 1

What is the range of detection?

Answer 1

30-40 NM

+/- 9900 feet

Question 2

What are the 4 types of traffic alerts?

Answer 2

Other - no threat
Proximate - no threat within 6NM and 1200’
Traffic Advisory - Close but no collision (TCPA 40sec)
Resolution Advisory - Collision Threat (TCPA 25sec)

Question 3

Where does the transponder gets ALT input from?

Answer 3

SYS1 gets from ADR1

SYS2 gets from ADR2

Question 4

What does the Traffic Selector do?

Answer 4

THRT TA or RA displayed only +/- 2700

ALL all traffic +/- 2700

ABV +9900(7000) / -2700

BLW +2700 / -9900(-7000)

Question 5

When is a TCAS STBY memo displayed?

Answer 5

TCAS selected to STBY

Both Transponders FAIL

Both Radar Altimeters FAIL

Question 6

What are the 2 types of RAs?

Answer 6

Corrective RA: climb/descend

Preventative RA: No climb/descent required

Question 7

What do you do with the FD during an RA?

Answer 7

Ignore it or turn it off