Leading Edge Autoslat System Schematic
Figure 4
A12604
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27-83-00
COMPUTER P/N 65-52818 ú CONFIG 1
ú 02 Page 11
ú Nov 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
LEADING EDGE AUTOSLAT SYSTEM - DESCRIPTION AND OPERATION
________________________________________________________
1. General (Fig. 1)_______
A. The leading edge autoslat system automatically extends the leading edge slats from the intermediate extend position to the full extend position to provide additional lift without changing trailing edge flap position. The system consists of an autoslat valve which can be activated independently by either stall management computer. Each stall management computer (Ref 27-32-00) receives inputs from an angle of airflow sensor, a flap position transmitter, and the E-11 landing gear logic shelf.
B. The leading edge slats are normally at the intermediate extend position during takeoff. When the airplane reaches a predetermined angle of attack, the stall management computer activates the autoslat valve, which causes the slats to move to the full extend position. The slats automatically retract to the intermediate extend position when the angle of attack is reduced.
C. Each stall management computer supplies signals to the autoslat valve, to the flight control module for fault indication, and to the flap/slat indication module.
2. Stall Management Computer (Fig. 1)_________________________
A. Each stall management computer (SMC) performs calculations to determine when to activate and deactivate the autoslat valve. Either SMC can activate the control valve. The SMC's are located on the E1-1 electronics shelf.
B. SMC 1 is powered by 28v dc through a circuit breaker on the P18-2 panel. The autoslat output is powered by a circuit breaker on the P6-2 panel. SMC 1 uses the following inputs for its autoslat control function:
(1)
Left Angle of Airflow Sensor
(2)
Right Flap Position Transmitter
(3)
E-11 Landing Gear Logic Shelf
C.
SMC 2 is powered by 28v dc through a circuit breaker on the P6-1 panel. The autoslat output is powered by a circuit breaker on the P6-2 panel. SMC 2 uses the following inputs for its autoslat control function:
(1)
Right Angle of Airflow Sensor
(2)
Left Flap Position Transmitter
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COMPUTER P/N 65-52822 ú CONFIG 2 ú 01 Page 1 ú Mar 15/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
Leading Edge Autoslat System - Component Location Figure 1 (Sheet 1)
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COMPUTER P/N 65-52822 ú CONFIG 2 ú 01 Page 2 ú Mar 15/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
FLT CONTROL STANDBY A B HYD
SEE MASTER CAUTION
FLAP POSITION INDICATOR
SEE
STDBY
RUD
OFF
A ON
OFF
OFF
QUANTITY A LOW
APRESSURE LOW
D
LE FLAPS LE FLAPS
ATRANSIT GEXT
A
MASTER CAUTION
PUSH TO RESET
ELEC
IRS
APU
FUEL
OVHT/DET
Leading Edge Autoslat System - Component Location
Figure 1 (Sheet 2)
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27-83-00 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 6(111)
