S 865-057
(22) On the TCAS -201 tester, push the SCEN key to show the scenario menu.
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747-400 MAINTENANCE MANUAL
S 865-058
(23) Set up this scenario:
(a) INTRUDER TYPE: Mode S
(b) RANGE: 8.0 nm RATE: +500 kt
(c) ALTITUDE: 40,100 ft RATE: 0 fpm
NOTE:____ Make sure the vertical separation between the airplane
and the intruder is about or slightly less than 100
feet. You can change the airplane's altitude or
intruder setup on the test set to achieve this.
S 865-059
(24) Push the RUN/STOP key to start the test, and look for this sequence on the ND, PFD and flight compartment speaker:
(a)
The intruder moves down the 45 degree bearing mark to the center of the ND.
(b)
The intruder has the correct relative altitude.
NOTE: The relative altitude shown can be +00 or +01 depending
____ on your actual vertical separation. This is because TCAS can only display relative altitude by 100 foot increments.
(c)
The intruder begins as Non-threat Traffic (open white diamond).
(d)
The intruder changes to Proximate Traffic (solid white diamond)
(e)
The intruder changes to a Traffic Advisory (solid yellow circle).
(f)
The TCAS gives a "TRAFFIC, TRAFFIC" voice announcement on the flight compartment speaker.
(g)
The intruder changes to a Resolution Advisory (solid red square).
(h)
The TCAS gives a "DESCEND, DESCEND" or "DESCEND, DESCEND, DESCEND" voice announcement on the flight compartment speaker.
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747-400 MAINTENANCE MANUAL
(i)
The PFD shows a RA resolution to push down.
(j)
Before the intruder gets to the closest point of approach, the TCAS gives an "increase descend" voice announcement on the flight compartment speaker.
(k)
Shortly after the intruder reaches the airplane symbol on the ND, TCAS gives a "Clear of Conflict" voice announcement on the flight compartment speaker.
NOTE: The "Clear of Conflict" announcement sometimes may not
____
be given.
S 865-040
(25) Set the transponder select switch on the control unit to the R or 2 position.
F. High Altitude Climb Inhibit Test
S 865-097
(1)
Use the pitot/static test set to make an altitude of 49,000 feet.
S 865-052
(2)
Push the SCEN key on the TCAS test set to show the scenario menu.
S 865-053
(3)
Set up this scenario:
(a)
INTRUDER TYPE: ATCRBS ALT = ON
(b)
RANGE: 4.2 nm RATE: +500 kt
(c)
ALTITUDE: 48,800 ft RATE: 0 fpm
(4)
Make sure that the relative altitude of the intruder is -02.
S 215-107
NOTE: If the relative altitude of the intruder is not -02,
____ change the intruder setup altitude accordingly.
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