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Training Information Point
You can start a level one test from the front panel of the GPWC, but you cannot see the flight deck annunciations. Use the GPW module to start an operational test of the GPWS.
Short Level One Test - Normal Indications
These visual and aural annunciations are for a normal level one test:
-ND system message TERR TEST shows in cyan -Ground proximity warning light on 0.7 seconds -Glideslope lights on 0.7 sec and aural message GLIDESLOPE -Pull-up message below the ADI on for 0.7 sec and aural WHOOP
WHOOP PULL-UP
-Windshear message below the ADI on 0.7 sec and a two tone siren followed by the aural WINDSHEAR, WINDSHEAR, WINDSHEAR
-Terrain test pattern on the ND for 12 seconds and aurel message -TERRAIN< TERRAIN< PULL-UP. -Terrain message on ND changes to OBSTACLE (red) and aurel
message OBSTACLE, OBSTACLE, PULL-UP. The (red) OBSTACLE on the ND changes to amber then extinguishes.

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GPWS - SELF-TEST - LEVEL ONE
-After the second TERRAIN, TERRAIN ,PULL-UP the warning CAUTION OBSTACLE, CAUTION OBSTACLE, OBSTACLE, OBSTACLE, OBSTACLE, PULL-UP is heard.
-ND message TDBXXX (terrain database software version).

Long Level One Test
To start the long level one test, push and hold the test button for 5 seconds. This will do the short level one test then continue to give voice callouts for all customer selected items.
Training Information Point
To continue the GPWS BITE to the next level, push the test button after the GO-NO-GO (level 1) test is complete. No annunciation will instruct the operator to push the test button on the GPWM at the end of the go-no-go (level 1) test to continue with the BITE.
Level One Self Test - Non-Normal Indications
The GPWS level one test fails for any of these conditions:
-Terrain test pattern does not show
-TERR FAIL message on the ND stays on
-You do not see and hear all annunciations.

Training Information Point
Some GPWS modes have the same annunciations. If you do not see and hear all annunciations, the test fails.
GPWS Mode Failures
These aural messages are for GPWS modes that do not function:
-GLIDESLOPE INOP
-GPWS INOP
-CALLOUTS INOP
-WINDSHEAR INOP
-TERRAIN INOP.

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TERRAIN DATABASE
SOFTWARE VERSION

BLACK

TERRAIN IS REPLACED BY A RED THEN A AMBER (OBSTACLE) ANNUCIATION DURING THE TEST.
YELLOW
GREEN
YELLOW

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GPWS - SELF-TEST -LEVELS 2-5 General Description
The ground proximity warning computer (GPWC) has six levels of self test:
-1 - GO/NO-GO operational test
-2 - Current faults
-3 - System configuration
-4 - Fault history
-5 -Alert/warning history
-6 - Discrete input test.

Self-test levels 2-6 access is through the GPW module and the GPWC. When you use the GPWC, a 600 ohm headphone is necessary to listen to the test information. Plug the headphone into the jack on the front panel of the GPWC. If you do the tests from the flight deck, the information comes over the flight deck speakers.
　
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