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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
General
The takeoff warning function gives an aural warning sound if the
airplane is in an unsafe condition during takeoff or if the ground
spoiler interlock valve remains open after takeoff.
Abbreviations and Acronyms
* asym - asymmetry
* FSEU - flap/slat electronics unit
* gnd - ground
* LE - leading edge
* PSEU - proximity switch electronic unit
* SMYD - stall management yaw damper
* spdbk - speedbrake
* sw - switch
* TE - trailing edge
* TO - takeoff
* UCM - uncommanded motion
* warn - warning
TAKEOFF WARNING - INTRODUCTION
EFFECTIVITY
SHZ ALL 31-53-00
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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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.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
31-53-00-001
TAKEOFF WARNING - INTRODUCTION
TAKEOFF WARNING - INTRODUCTION
EFFECTIVITY
SHZ ALL 31-53-00
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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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.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
31-53-00-001
General Description
The takeoff warning function is in the proximity switch
electronics unit (PSEU). The aural warning module gives the
sound of an intermittent horn for a takeoff warning on the
ground and in the air.
On the Ground
When the airplane is on the ground and the thrust levers are at
the takeoff power position (thrust resolver angle more than 53
degrees), the aural warning system gives the takeoff warning
sound if any of these conditions occur:
* Speedbrake lever is not down
* Parking brake is set
* Ground spoilers have pressure
* LE flaps and slats are not extended, or have an
uncommanded motion (UCM)
* TE flaps are not in a takeoff position, or are in a skew or
asymmetry condition, or have an uncommanded motion
(UCM)
* Stabilizer is out of the green band.
System 1 and system 2 each calculate separate output signals
and are combined for a takeoff warning. This turns on the
intermittent horn in the aural warning module.
In the Air
When the airplane is in the air and the landing gear takeoff
warning cutoff circuit breaker is closed, the aural warning
system gives a takeoff warning sound if both of these conditions
occur:
* LE flaps and slats are not extended
* Ground spoiler interlock valve is open.
Only system 1 is used to calculate the aural warning when the
airplane is in the air. This turns on the intermittent horn in the
aural warning module.
TAKEOFF WARNING - FUNCTIONAL DESCRIPTION
EFFECTIVITY
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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
31-53-00-002
TAKEOFF WARNING - FUNCTIONAL DESCRIPTION
TAKEOFF WARNING - FUNCTIONAL DESCRIPTION
EFFECTIVITY
SHZ ALL 31-53-00
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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
31-53-00-002
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31-62-00
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D633A101-SHZ1 Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
General
The common display system (CDS) shows performance,
navigation and engine information in many different formats
on six display units in the flight compartment.
Abbreviations and Acronyms
* A/C - air conditioning
* ACARS - aircraft communication addressing and reporting
system
* ACMS - airplane condition monitoring system
* acq - acquisition
* ADF - automatic direction finder
* ADI - attitude director indication
* ADIRU - air data inertial reference unit
* ADL - airborne data loader
* ADR - air data reference
* alt - altitude
* altn - alternate
* AOA - angle of attack
* app - approach
* APU - auxiliary power unit
* arpt - airport
* A/T - autothrottle
* baro - barometric
* BITE - built-in test equipment
* BLS - bezel light sensor
* capt - captain
* CCA - circuit card assembly
SHZ ALL (POST SB 737-31-1246 AND PRE SB 737-31-1295) OR
POST SB 737-31-1295
* CCN - compatibility class number
SHZ ALL
* CDS - common display system
* CDU - control display unit
* CL - center lower
* clb - climb
　
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