FLIGHT COMPARTMENT PRINTING SYSTEM-FUNCTIONAL DESCRIPTION
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FLIGHT COMPARTMENT PRINTING SYSTEM -OPERATIONAL GROUND TESTS
General
You can do a test of the flight compartment printer with the MAT. The MAT has one test for the printer, it is an operational ground test.
Flight Compartment Printer
During this test, the printer does an internal test. If the printer has no problem, it makes a printout of a page of characters. The lights on the printer come on during the test.
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FLIGHT COMPARTMENT PRINTING SYSTEM -OPERATIONAL GROUND TESTS
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777 AIRCRAFT MAINTENANCE MANUAL
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AIRPLANE CONDITION MONITORING SYSTEM -INTRODUCTION
General * SRAM -static random access memory
*
VHF -very high frequency The airplane condition monitoring system (ACMS) collects, monitors, and records data from airplane systems. This data causes reports. The purpose of the reports are to:
*
Analyze airplane performance
*
Analyze trends
*
Report significant events
*
Troubleshoot faults.
Abbreviations and Acronyms
*
ACMF -airplane condition monitoring function
*
ACMS -airplane condition monitoring system
*
AIMS -airplane information management system
*
AMI -airline modifiable information
*
ARINC -Aeronautical Radio, Inc.
*
ATE -automatic test equipment
*
CPM/Comm -core processor module/communications
*
CPM/ACMF -core processor module/airplane condition
monitoring function
*
CPU -central processing unit
*
DCMF -data communication management function
*
EEPROM -electrically erasable programmable read only
memory
*
GBST -ground based software tool
*
IOM -input/output module
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MAT -maintenance access terminal
*
OPC -operational program configuration
*
OPS -operational program software
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QAR -quick access recorder
*
SDU -satellite data unit
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AIRPLANE CONDITION MONITORING SYSTEM -INTRODUCTION
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ACMS -GENERAL DESCRIPTION
General
The ACMS has the airplane condition monitoring function (ACMF) in the left AIMS cabinet.
ACMS user interface is through formats on the maintenance access terminal (MAT) or portable maintenance access terminal (PMAT) displays.
The ACMS has an interface with the QAR.
The airline uses a ground based software tool (GBST) to program the ACMS with custom features.
ACMF
The ACMF is only in the left cabinet. The ACMF is a combination of standard and custom software. The software that the airline customizes sets these functions:
*
Report format
*
Report content
*
Triggers.
Triggers are logic equations that detect conditions and cause data to record. An example of a trigger is an engine exceedance or a flight phase.
The ACMF sends the data to the:
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QAR
*
MAT
*
PMAT
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MAT or PMAT disk drive to record on a diskette
*
Data communication management function (DCMF).
The DCMF controls the interface to:
*
The printer
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The satellite data unit (SDU)
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The VHF transceivers.
QAR
The QAR records data from the ACMF onto an optical disk.
MAT
The ACMS main menu shows on the MAT. The standard ACMS menu lets the user do these:
*
Modify constants
*
Set triggers for manual reports
*
See reports
*
Set the destination for reports
*
See real-time data.
There are five ACMS menus that the airline can customize with the GBST.
Ground Based Software Tool
The airline uses the GBST to do these:
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