(2)
Remove the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER from the flap/slat control lever.
Subtask 27-84-69-942-050
B. 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.
SLATS POSITION INDICATING - DESCRIPTION AND OPERATION
_____________________________________________________
1. General
_______
The upper display unit of the Electronic Centralized Aircraft Monitoring (ECAM) system shows the slat position. The display unit shows the slat position together with the flap position and the direction of their movement. A full description of the flap position indicating data is given in (Ref. 27-55-00).
The Instrumentation Position Pick-Off Unit (IPPU) 4CN monitors the movement of the mechanical transmission system. It thus monitors the operation and position of the slats.
2. Component Location
__________________
(Ref. Fig. 001)
-------------------------------------------------------------------------------FIN I FUNCTIONAL DESIGNATION I PANELIZONEIACCESS I ATA
I I I I DOOR I REF. -------------------------------------------------------------------------------6001CM POWER CONTROL UNIT 148 734 27-84-51 4CN INSTRUMENTATION POSITION PICK-OFF 147/ 734/ 27-85-11
UNIT (IPPU) 148 744
3. System Description
__________________
**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
The IPPU is attached to the slat 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 slat 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 slats on the upper display unit of the ECAM system.
Component Location
Figure 001
1EFF : ALL 1 27-85-00 Page 2
1 1 Feb 01/98
1 1
1CES 1
Indication of the Slat Positions
Figure 002
R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 27-85-00Page 3 1201-299, 301-302, 1May 01/05 1 1 1CES 1
Indictaion of the Slat Positions
Figure 002A
R 1EFF : 106-149, 303-399, 401-499, 1 27-85-00Page 4 1 1 Aug 01/05 1 1 1CES 1 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 slats on the display. The white points are not shown when the slats and flaps are fully retracted (clean configuration). The indication S, which is usually green, shows the slat part of the display. The indication is not shown when the aircraft is in the clean configuration.
The upper display unit also shows:
-
the position of the flap and slat control lever
-
the position of the slat surfaces
-
the direction and limit of the slat surface movement
-
when the slat alpha-lock/speed baulk-function is in operation
-
when the slat locking function is engaged
-
when a system failure has occurred.
R **ON A/C 106-149, 303-399, 401-499,
White points show the position of the slats on the display. The white points are not shown when the slats and flaps are fully retracted (clean configuration). The indication S, which is usually white, shows the slat part of the display. The indication is not shown when the aircraft is in the clean configuration.
The upper display unit also shows:
-
the position of the flap and slat control lever
-
the position of the slat surfaces
-
the direction and limit of the slat surface movement
-
when the slat alpha-lock/speed baulk-function is in operation
-
when the slat locking function is engaged
-
when a system failure has occurred.
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