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DISCRETES
These pages show the current status of the analog discretes that send data to the FMC selected as the BITE source. FMCS - FIXED OUTPUTS This function shows the values of the FMCS outputs to the common
display system (CDS) and the autoflight status annunciators (ASA). MODEL/ENG The model/engine configuration page shows the airplane and engine
configuration. It also shows the engine combustor type and the brake option selected.
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FMCS BITE PAGES - INTRODUCTION SW OPTIONS The software option pages show the status of the options that are in the software options database. PERF FACTOR The performance factors page permits the display and entry of performance factors to optimize airplane performance for individual operators or airplane characteristics. IRS MONITOR This page shows the ADIRU position error rate calculated by the FMC. LCD CDU The LCD CDU page shows the MCDU BITE pages.
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FAULT

CURRENT STATUS OF FMCS INPUT SENSORS (ADIRU,
ISOLATION

DFCS, DME, ETC.)

INFLIGHT FAULTS SELECT
TEST AND
MONITOR

CURRENT STATUS OF FMCS INPUT SENSORS (ADIRU, DFCS, DME, ETC.)

CURRENT STATUS OF ANALOG DISCRETE INPUTS TO THE FMCS

FLIGHT DECK INSTRUMENT DATA
ADIRU DRIFT RATE

DRAG AND FUEL FLOW FACTORS

SOFTWARE OPTION DATA BASE

AIRPLANE MODEL AND ENGINE CONFIGURATION

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ENGINEERING DATA AVAILABLE WITH ACCESS CODE 300 FMCS BITE PAGES - INTRODUCTION
ENGINEERING DATA AVAILABLE WITH ACCESS CODE 100

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FMCS BITE PAGES - BITE ENTRY THIS PAGE INTENTIONALLY LEFT BLANK
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FMCS BITE PAGES - BITE ENTRY General
To get access to the MAINT BITE INDEX page, use the MAINT> prompt (LSK 6R) on the INIT/REF INDEX page.
The MAINT prompt only shows if the airplane is on the ground and the groundspeed (as sensed by the IR section of the ADIRU) is less than 20 knots.
NOTE:  In the air on the INIT/REF INDEX page, NAV STATUS shows at LSK 6R.
The MAINT BITE INDEX page shows these airplane sub-systems:
-FMCS
-DFCS
-A/T
-ADIRS
-CDS
-ENGINE
-APU
-FQIS.

Also, there is a prompt for FMC DOWNLOAD at LSK 6R.
On the MAINT BITE INDEX page, select FMCS to get access to FMCS BITE.
On the FMCS BITE page, either FMC LEFT (FMC 1) or FMC RIGHT (FMC 2) can be selected as the BITE data source.
It is possible to select FMC 1 as the BITE data source on the left CDU and FMC 2 as the BITE data source on the right MCDU. In this configuration, sensor data can be compared for both FMCs.
If the BITE information from the FMC is not available or invalid, the caret (<) does not show and the message LEFT (or RIGHT) FMC BITE INOP shows.
The CROSSLOAD prompt gives the capability for crossload of the OFP or other data bases between FMCs.
The process starts by selection of the CROSSLOAD prompt (LSK 6R). The MCDU then shows the FMCS CROSSLOAD page which has instructions for crossloading the applicable data base between FMCs.
Primary/Secondary FMC Select
The primary FMC provides the MCDU display data. The arrow direction in the top left corner of the MCDUs shows which FMC is primary. You use the FMCS transfer switch to select the primary FMC.
　
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