(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
In the housing (8),make sure that the ventilation air inlet (7) is in the correct condition (flexible seal installed and duct not blocked) and that the locking studs (5) and the movable locking hooks (6) are not damaged.
(4)
Remove the blanking caps from the electrical connectors (1).
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(5)
Make sure that the electrical connectors (1) are in the correct condition.
(6)
Install the unit (2) in the panel opening.
NOTE : Fully move down the handle (3) to the bottom of the screen.
____
(7)
Push the unit until the locking studs (5) touch the movable locking hooks (at this time, the face of the unit must be out of the panel by approximately 3 cm).
(8)
Push on the two sides of the unit (2) to connect the electrical connector (1) . Let the handle (3) move up freely until it is at the level of the locking catches (4) (the unit is now in line with the panel).
(9)
Slowly and continuously move the handle (3) to its maximum position.In this position the two locking catches (4) are locked under the handle (3).
(10) FOR 2WT1, 3WT1 Install the thermoformed cover on the CAPT main instrument panel. FOR 2WT2, 3WT2 Install the thermoformed cover on the F/O main instrument panel. FOR 4WT1, 4WT2 Install the thermoformed cover on the center instrument panel.
Subtask 31-63-22-552-050
B. Return to service for hot and very humid countries.
NOTE : In hot and very humid conditions apply the following precaution
____
before the Display Unit is energized.
(1) After the installation of the Display Unit (DU) on the aircraft wait 15 minutes before energizing the DU. During this period the avionics ventilation system should be operating to ensure the removal of any internal codensation.
Subtask 31-63-22-865-052
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): FOR 2WT1 11WT1, 22WT1 FOR 2WT2 11WT2, 22WT2
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FOR 3WT1
12WT1, 23WT1
FOR 3WT2
12WT2, 23WT2
FOR 4WT1
13WT1, 24WT1
FOR 4WT2
13WT2, 24WT2
R **ON A/C 401-499,
Subtask 31-63-22-740-050
D. Check of the software update
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
Wait for 40s
- observe the screen of the newly
installed display unit
-
if the operational image comes - then go to the paragraph E. and
into view on the screen of the ignore the six following steps.
newly installed DU
-
if the amber message "DISPLAY - then do the X loading procedure of SYSTEM VERSION INCONSISTENCY" the DMC1 (Ref. TASK 31-60-00-610-001) comes into view on the newly installed PFD CAPT, ND CAPT, EWD and SD
-
if the amber message "DISPLAY - then do the X LOADING procedure of SYSTEM INCONSISTENCY" comes into the DMC2 (Ref. TASK 31-60-00-610-002) view on the newly installed PFD F/O or ND F/O
-
if the large E (in white) comes - then do the XLOADING procedure of the into view on the newly installed DMC1 (Ref. TASK 31-60-00-610-001) PFD CAPT, ND CAPT, EWD or SD
-
if the large E (in white) comes then do the XLOADING procedure of the into view on the newly installed DMC2 (Ref. TASK 31-60-00-610-002) PFD F/O or ND F/O
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Subtask 31-63-22-710-051
E. Do the operational test of the Electronic Instrument System (EIS)
(Ref. TASK 31-60-00-860-001) (Ref. TASK 31-60-00-710-001)
NOTE : (VALID FOR THE PFD AND ND)
____ If the A/C is operated in CAT3 conditions, you must also do this test: (Ref. TASK 22-97-00-710-001)
5. Close-up
________ Subtask 31-63-22-860-050
A. Close Access
(1)
Close the access door 811. (Ref. TASK 52-41-00-410-002)
(2)
Remove the access platform(s).
(3)
Make sure that the work area is clean and clear of tool(s) and other items.
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