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General
You can start a self-test from the ATC/TCAS control panel or
from the TCAS computer front panel test switch.
During a test, TCAS test signals go to these:
* NDs
* ADIs
* Front panel of the TCAS computer.
At the end of the test, a TCAS test aural goes to the flight
interphone speakers.
TCAS Self-Test Indications - ND
If the test passes, the ND shows this data:
* A cyan message, TCAS TEST
* A red message, TRAFFIC
* Amber TA traffic symbol at the 9:00 position, -200 feet relative
altitude with an up vertical motion arrow and 2 nm from the
airplane
* White other traffic symbol at the 11:00 position, +1000 feet
relative altitude with no vertical motion arrow and 3.6 nm
from the airplane
* White proximate traffic symbol at the 1:00 position, -1000 feet
relative altitude with a down vertical motion arrow and 3.6
nm from the airplane
* Red RA traffic symbol at the 3:00 position, +200 feet relative
altitude with no vertical motion arrow and 2 nm from the
airplane.
If the test fails, the message TCAS TEST FAIL replaces the
TCAS TEST message and no traffic shows. TCAS and FAIL
shows in amber and TEST shows in cyan.
TCAS Self-Test Indications - AI
If the test passes, the AI shows the red RA up and down
advisory cues.
If the test fails, the AI does not show any RA advisories.
TCAS - SELF-TEST INDICATIONS ON DISPLAYS
EFFECTIVITY
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TCAS - SELF-TEST INDICATIONS ON DISPLAYS
TCAS - SELF-TEST INDICATIONS ON DISPLAYS
EFFECTIVITY
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Front Panel Self-Test
Push and hold the test switch on the front panel for one second.
This starts a self-test. During the test, the front panel shows
these indications:
* All LEDs come on for one second to do a test of the LEDs
* All LEDs go off for one second
* Applicable LED comes on to show the status of the TCAS or
the TCAS interfaces.
The red fail LED shows that the TCAS computer has a failure.
TCAS - SELF-TEST INDICATIONS ON TCAS COMPUTER FRONT PANEL
EFFECTIVITY
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TCAS - SELF-TEST INDICATIONS ON TCAS COMPUTER FRONT PANEL
TCAS - SELF-TEST INDICATIONS ON TCAS COMPUTER FRONT PANEL
EFFECTIVITY
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General
This page is for reference purposes.
TCAS - SUMMARY
EFFECTIVITY
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TCAS - SUMMARY
TCAS - SUMMARY
EFFECTIVITY
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Purpose
The ground proximity warning system (GPWS) alerts the flight
crew of an unsafe condition when the airplane is near the
terrain. It also supplies a warning for windshear conditions.
The GPWS uses global positioning system (GPS)and disk
loadable software data bases to give the flight crew improved
terrain awareness. This is done by the display of detailed
terrain information for the area around the aircraft. The GPWS
also warns the flight crew of an early descent.
Description
The GPWS uses aural messages, lights, and displays to give
alerts in the flight compartment.
GPWS Modes
These are the GPWS modes:
* Mode 1 - Large descent rates
* Mode 2 - Too much of a closure rate when approaching
terrain that is rising
* Mode 3 - Too much altitude loss during climbout (at takeoff or
in go around) when the airplane is not in the landing
configuration
* Mode 4 - Not enough terrain clearance
* Mode 5 - Too much deviation below the glideslope
* Mode 6 - Aural callouts when the airplane descends through
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