*
MCP program pin faults
*
MCP/AFDC discrete interface faults
*
MCP/AIMS discrete interface faults
*
ARINC 429 output bus faults
*
Internal MCP monitor faults
*
Internal MCP redundant and parallel data path faults.
TO/GA Switch System Test
The TO/GA switch system test is the same as the TO/GA switch LRU replacement test.
EFFECTIVITY BEJ ALL 22-11-00
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777 AIRCRAFT MAINTENANCE MANUAL
AFDS -SYSTEM TESTS
EFFECTIVITY BEJ ALL 22-11-00
Page 98.55
D633W101-BEJ Sep 05/2002
THRUST MANAGEMENT COMPUTING SYSTEM (TMCS) -INTRODUCTION
General
The thrust management computing system (TMCS) is part of the airplane information management system (AIMS). The TMCS controls engine thrust in response to mode requests from the:
*
Mode control panel (MCP)
*
Flight management computing function (FMCF)
*
Flight deck switches.
The TMCS can operate in all flight phases.
Abbreviations and Acronyms
*
A/P -autopilot
*
A/T -autothrottle
*
ACMF -airplane condition monitoring function
*
ADIRU -air data inertial reference unit
*
AFDC -autopilot flight director computer
*
AFDS -autopilot flight director system
*
AGL -above ground level
*
AIMS -airplane information management system
*
alt -altitude
*
app -approach
*
ARINC -Aeronautical Radio, Incorporated
*
ASCPC -air supply cabin pressure controller
*
ASG -ARINC signal gateway
*
ASIC -application specific integrated circuit
*
ASM -autothrottle servo motor
*
BARO -barometric altitude
*
clb -climb
*
CMCF -central maintenance computing function
*
cmd -command
EFFECTIVITY
BEJ ALL
*
con -continuous
*
CPM -core processor module
*
CTC -cabin temperature controller
*
D -derate
*
des -descent
*
DFDAF -digital flight data acquisition function
*
disc -disconnect
*
DCGF -data conversion gateway function
*
DCMF -data communication management function
*
ECM -electronic control module
*
EEC -electronic engine control
*
EDIU -engine data interface unit
*
EPR -engine pressure ratio
*
FD -fire detection
*
FDCF -flight deck communication function
*
F/D -flight director
*
FLCH -flight level change
*
flt -flight
*
FMCF -flight management computing function
*
FMCS -flight management computing system
*
FPM -feet per minute
*
FPS -feet per second
*
FSEU -flap slat electronics unit
*
G/A -go around
*
GG -graphics generator
*
GS -ground speed
*
GW -gross weight
*
IAS -indicated airspeed
*
IC -intercabinet
*
IOM -input/output module
*
KTS -knots (nautical miles per hour)
*
L -left
22-31-00
Page 1 D633W101-BEJ Sep 05/2002
THRUST MANAGEMENT COMPUTING SYSTEM (TMCS) -INTRODUCTION
*
MAT -maintenance access terminal
*
MCP -mode control panel
*
Mmo -maximum operating mach
*
N1 -low speed compressor RPM
*
N2 -high speed compresor RPM
*
OPAS -overhead panel ARINC system
*
OPBC -overhead panel bus controller
*
OPC -operational program configuration
*
OPS -operational program software
*
PDF -primary display function
*
PFC -primary flight computer
*
PTH -path
*
PSEU -proximity sensor electronics unit
*
PSB -power switching bridge
*
PSM -power switching module
*
PSU -power switching unit
*
PSU -power supply unit
*
pwr -power
*
QARF -quick access recorder function
*
ref -reference
*
rqst -request
*
R -right
*
RA -radio altimeter
*
RT -receiver-transmitter
*
SAARU -secondary attitude air data reference unit
*
SO -shutoff
*
SPD -speed
*
tach -tachometer
*
TAS -true airspeed
