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21 for troubleshooting procedures.
ADIRS - POSITION DIFFERENCE AFTER ALIGNMENT 2
EFFECTIVITY
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ADIRS - POSITION DIFFERENCE AFTER ALIGNMENT 2
ADIRS - POSITION DIFFERENCE AFTER ALIGNMENT 2
EFFECTIVITY
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General
You must enter present position during the alignment period. If
the alignment period ends and present position has not been
entered, these conditions show:
* ALIGN light flashes
* Status code 8 shows on ISDU
* ENTER IRS POSITION shows on CDU.
Use the CDU or the ISDU to enter present position. When you
enter present position these conditions show:
* ALIGN light goes off
* Status code 8 goes out of view
* ENTER IRS POSITION goes out of view.
ADIRS - NO PRESENT POSITION ENTRY
EFFECTIVITY
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ADIRS - NO PRESENT POSITION ENTRY
ADIRS - NO PRESENT POSITION ENTRY
EFFECTIVITY
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General
Use the attitude (ATT) mode when you only need pitch and roll
data, or when the navigation function of the ADIRU fails. You
can select the attitude mode on the ground or in the air.
Attitude Mode Selection
Move the mode selector to ATT to select the attitude mode. The
ADIRU goes to the attitude mode 2 seconds after the mode is
selected. The two second delay prevents accidental selection of
the mode.
Attitude Alignment
When you select the attitude mode, the ALIGN light comes on
for 30 seconds. During this time, the ADIRU calibrates to 0
degrees in pitch and roll. If the airplane is in the air, the pilot
must keep the airplane straight and level and not accelerate
until the ALIGN light goes off.
Heading Entry
The ADIRU uses manual heading in the ATT mode. Status code
9 shows on the ISDU until you enter magnetic heading. Enter
magnetic heading with the ISDU or CDU.
On the ISDU, push the H5 key and the number keys. Heading
shows on the IRS DISPLAY. Push the ENT key to enter the
heading in the ADIRU.
On the CDU, enter the three digit heading value in the
scrtatchpad. Use the line select key (LSK) 5R to enter the
heading in the ADIRU. The heading shows on the CDU.
ADIRS - ATTITUDE MODE
EFFECTIVITY
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ADIRS - ATTITUDE MODE
ADIRS - ATTITUDE MODE
EFFECTIVITY
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GENERAL
The chart shows the mode sequences of the MSU mode
selector.
ADIRS - IR MODES
EFFECTIVITY
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ADIRS - IR MODES
ADIRS - IR MODES
EFFECTIVITY
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