The red light on the L/G control lever 6GA comes on if the aircraft is in a landing configuration and the gear is not locked down. The Flight Warning Computer (FWC) (Ref. 31-52-00) controls this function.
9. BITE Test
_________
R **ON A/C 001-049, 101-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 063)
**ON A/C 051-099,
(Ref. Fig. 063A)
**ON A/C ALL
The LGCIU contains hardware and software to complete these functions:
-
to continuously monitor the L/G Normal Extension and Retraction System for failures and defects
-
to store failure and defect data and also to send this data to the Centralized Maintenance System
-
to do an automatic test of parts of the system during power-up
-
to output simulated L/G configurations during ground maintenance
-
to do an automatic test of the system when a selection is made on a Multipurpose Control and Display Unit (MCDU) (Ref. 22-82-00).
Refer to (Ref. 32-69-00) for the description and operation of these functions.
The monitor and failure/defect storage functions are completed all the time the LGCIUs are supplied with power and are serviceable. The automatic test selection on the MCDU cannot be selected at wheel speeds of more than 70 knots or during flight. The simulation function is also not available during flight.
A. Power-up Tests Initialization and Cockpit Effects.
(1) Conditions of power-up tests initialization:
-de-energization time of computer: >3mS
-A/C configuration:
-whatever the A/C configuration on the ground.
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MCDU System Displays - LGCIU Figure 063 (SHEET 1)
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MCDU System Displays - LGCIU Figure 063 (SHEET 2)
R 1EFF : 001-049, 101-149, 151-199, 201-299, 1 32-31-00Page A31 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1
MCDU System Displays - LGCIU Figure 063 (SHEET 3)
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MCDU System Displays - LGCIU Figure 063 (SHEET 4)
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R MCDU System Displays - LGCIU
R Figure 063A (SHEET 1)
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1 1
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R MCDU System Displays - LGCIU
R Figure 063A (SHEET 2)
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1 1
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R MCDU System Displays - LGCIU
R Figure 063A (SHEET 3)
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R MCDU System Displays - LGCIU
R Figure 063A (SHEET 4)
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(2)
Progress of power-up tests:
-duration: 210mS
-cockpit effects directly connected to power-up test done (other effects can occur related to the A/C configuration but these can be ignored):
(a)
LGCIU 1:
-LDG gear panel.
(b)
LGCIU 2:
-none.
(3)
Results of power-up tests (cockpit effects):
(a) Correct test results:
1_ LGCIU 1:
- LDG Gear Panel: No ECAM warning, no visible indication other
than normal operation.
2 LGCIU 2:
_
-no ECAM warning, no visible indication other than normal operation.
(b) Incorrect test results: 1 LGCIU 1:
_
-ECAM warning: L/G LGCIU 1 FAULT. 2 LGCIU 2:
_
-ECAM warning: L/G LGCIU 2 FAULT.
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___________________________________________________________
TASK 32-31-00-040-003
Check of the System 2 Proximity Sensors of the Landing Gear and the Landing Gear Doors 11GA(10GA), 13GA, 17GA(16GA), 19GA, 23GA(22GA), 25GA, ......
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