Subtask 27-54-63-942-050
D. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Remove the warning notice(s).
(3)
Remove the access platform(s).
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
FLAPS POSITION INDICATING - DESCRIPTION AND OPERATION
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1. General
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The upper display unit of the Electronic Centralized Aircraft Monitoring (ECAM) system shows the flap position. The display unit shows the flap position together with the slat position and the direction of their movement. A full description of the slat position indicating data is given in (Ref. 27-85-00).
The Instrumentation Position Pick-Off Unit (IPPU) 3CN monitors the movement of the mechanical transmission system. It thus monitors the operation and position of the flaps.
2. Component Location
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(Ref. Fig. 001)
-------------------------------------------------------------------------------FIN I FUNCTIONAL DESIGNATION I PANELIZONEIACCESS I ATA
I I I I DOOR I REF. -------------------------------------------------------------------------------6201CM POWER CONTROL UNIT 147 734 27-54-51 3CN INSTRUMENTATION POSITION PICK-OFF 147/ 734/ 27-55-11
UNIT (IPPU) 148 744
3. System Description
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**ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
(Ref. Fig. 002)
R **ON A/C 106-149, 303-399, 401-499,
(Ref. Fig. 002A)
**ON A/C ALL
(Ref. Fig. 003)
R Equipment on Flap Power Control-Unit - Component Location Figure 001
1EFF : ALL 1 27-55-00Page 2 1 1 Aug 01/05 1 1 1CES 1
Indication of the Flap Positions
Figure 002
R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 27-55-00Page 3 1201-299, 301-302, 1May 01/05 1 1 1CES 1
Indication of the Flap Positions
Figure 002A
R 1EFF : 106-149, 303-399, 401-499, 1 27-55-00Page 4 1 1 Aug 01/05 1 1 1CES 1
Flap Position Indicating - Schematic Figure 003
1EFF : 1 1R 1CES ALL 1 11 1 27-55-00 Page 5 Feb 01/05
The IPPU is attached to the flap Power Control Unit (PCU). An intermediate gear transmits the movement from the output shaft of the differential gearbox to the IPPU. The IPPU sends the flap position data to the Flight Warning Computers (FWC1, FWC2) (Ref. 31-53-00). The FWCs send the data to the Electronic Instrument System (EIS). The EIS shows the position of the flaps on the upper display unit of the ECAM system.
The upper display unit uses the shape of a wing to show the slat and flap positions. A grey symbol shows the fixed center section of the wing. Green indications show the correct position of the slats and flaps. When the slats and flaps are fully retracted, the green symbols are shown on the two sides of the center section of the wing.
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
White points show the position of the flaps on the display. The white points are not shown when the flaps and slats are fully retracted (clean configuration). The indication F, which is usually green, shows the flap part of the display. The indication is not shown when the aircraft is in the clean configuration.
The upper display unit also shows:
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the position of the flap and slat control lever
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the position of the flap surface
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the direction and limit of the flap surface movement
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when the flap locking function is engaged
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when the flap auto-command function is engaged
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when a system failure has occurred.
R **ON A/C 106-149, 303-399, 401-499, 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM FLIGHT CONTROLS 飞行操纵6(93)
