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D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-16-00-004
General
There are two mach airspeed warning test switches. They are
momentary push switches. When you push the test switch, a
ground discrete goes to the air data inertial reference unit
(ADIRU).
OVERSPEED WARNING - MACH AIRSPEED WARNING TEST SWITCH
EFFECTIVITY
SHZ ALL 34-16-00
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D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-16-00-005
OVERSPEED WARNING - MACH AIRSPEED WARNING TEST SWITCH
OVERSPEED WARNING - MACH AIRSPEED WARNING TEST SWITCH
EFFECTIVITY
SHZ ALL 34-16-00
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D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-16-00-005
Purpose
The air data inertial reference system (ADIRS) has two primary
functions:
* Air data reference (ADR)
* Inertial reference (IR).
The ADR function calculates airspeed and barometric altitude.
The IR function calculates this data:
* Attitude
* Present position
* Groundspeed
* Heading.
Abbreviations and Acronyms
* AACU - antiskid autobrake control unit
* AC - alternating current
* A/D - analog to digital
* ADF - automatic direction finder
* ADI - attitude direction indication
* ADIRS - air data inertial reference system
* ADIRU - air data inertial reference unit
* ADM - air data module
* ADR - air data reference
* alt - altimeter
* alt - altitude
* AOA - angle of attack
* ARINC - Aeronautical Radio, inc.
* A/T - autothrottle
* ATC - air traffic control
* att - attitude
* bat - battery
* baro - barometric
* brt - brightness
* capt - captain
* CAS - computed airspeed
* CDS - common display system
* CDU - control display unit
* clr - clear
* CPC - cabin pressure controller
* CPU - central processing unit
* DC - direct current
* DIU - display interface unit
* DEU - display electronics unit
* DU - display unit
* dspl - display
* EFIS - electronic flight instrument system
* elec - electronic
* elex - electrical
* ent - enter
* FCC - flight control computer
* FDAU - flight data acquisition unit
* FMC - flight management computer
* FMCS - flight management computer system
* F/O - first officer
* FPV - flight path vector
* FSEU - flap slat electronics unit
* FWD - forward
* GPS - global positioning system
* GPWC - ground proximity warning computer
* GS - ground speed
* hdg - heading
AIR DATA INERTIAL REFERENCE SYSTEM - INTRODUCTION
EFFECTIVITY
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Page 1
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-21-00-001
* HPA - hecto-pascals
* IFSAU - integrated flight systems accessory unit
* in - inches
* init - initialization
* instr - instrument
* IR - inertial reference
* IRS - inertial reference system
* ISDU - inertial system display unit
* L - left
* LCD - liquid crystal display
* LSK - line select key
* MAG - magnetic
* MASI - mach airspeed indicator
* MCU - master caution unit
* MMR - multi-mode receiver
* MSU - mode select unit
* nav - navigation
* NCD - no computed data
* ND - navigation display
* NVM - non-volatile memory
* PPOS - present position
* pos - position
* PSEU - proximity switch electronics unit
* R - right
* ref - reference
* RMI - radio magnetic indicator
* R/T - receiver transmitter
* SAT - static air temperature
* sel - select
* SMYD - stall management yaw damper
* spd - speed
* stby - standby
* STS - status
* sw - switched
* sys - system
* TAS - true airspeed
* TAT - total air temperature
* TCAS - traffic collision avoidance system
* TK - track
* trk - track
* tru - true
* V - volts
* VOR - VHF omnidirectional range
* VSI - vertical speed indication
* WXR - weather radar
* xfr - transfer
AIR DATA INERTIAL REFERENCE SYSTEM - INTRODUCTION
EFFECTIVITY
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Page 2
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
　
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