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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
17) Push LSK 5L (<TEST START) to start the R IRU interface check.
NOTE: Press LSK 5L (<TEST STOP) to stop the test.
____ It may be necessary to do this test several times to view all reactions of the test.
To repeat this test:
-
Press LSK 5L (<TEST STOP).
-
Press LSK 6L (<INDEX). Make sure that the IRS BITE TEST - IRS R INDEX page is displayed.
-
Press LSK 3L (<INTERFACE CHECK). Make sure that the IRS BITE TEST - INTERFACE CHECK R 1/4 page is displayed.
-
Press LSK 5L (<TEST START).
a) Make sure that for the first 2 seconds:
1. The ALIGN, FAULT, ON DC, and DC FAIL lights on the
_
right side of the MSU illuminate.
b) Make sure that for the next 8 seconds:
1.
The ATT flag on the first officer's ADI comes into
_
view.
2.
The HDG flag on the first officer's HSI comes into
_
view.
3.
The HDG flag on the first officer's RDDMI comes
_
into view.
18) Push the NEXT PAGE key to move the display to page 2/4 of this test. a) Make sure that the pitch angle shown on the first
officer's ADI agrees with the IRU output. b) Make sure that the roll angle shown on the first officer's ADI agrees with the IRU output. c) Make sure that the yaw rate (rate of turn) shown on the first officer's ADI agrees with the IRU output.
19) Set the DSPL SEL switch on the ISDU to the HDG/STS position. a) Make sure that the true heading shown on the ISDU
display agrees with the IRU input.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
20) Push the NEXT PAGE key to move the display to page 3/4 of this test. a) Make sure that the magnetic heading shown on the first
officer's HSI agrees with the IRU output. b) Make sure that the magnetic heading shown on the first officer's RDDMI agrees with the IRU output. c) Make sure that the drift angle shown on the first officer's HSI agrees with the IRU output. 21) Set the DSPL SEL switch on the ISDU to the TK/GS position. a) Make sure that the track angle shown on the left side of the ISDU display agrees with the IRU input. b) Make sure that the ground speed shown on the right side of the ISDU display agrees with the IRU output. 22) Push the NEXT PAGE key to move the display to page 4/4 of this test. 23) Set the DSPL SEL switch on the ISDU to the WIND position. a) Make sure that the wind direction shown on the left side of the ISDU display agrees with the IRU output. b) Make sure that the wind speed shown on the right side of the ISDU display agrees with the IRU output. 24) Set the DSPL SEL switch on the ISDU to the PPOS position. a) Make sure that the latitude shown on the left side of the ISDU display agrees with the IRU output. b) Make sure that the longitude shown on the right side of
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