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B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the light switch 3LJ to the OFF position and close the access panel 312AR.
(3)
Remove the access platform(s).
(4)
Remove the warning notice(s). Subtask 31-33-55-862-051
C.
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
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R TASK 31-33-55-920-001 R Replacement of the Underwater Locator Beacon (ULB) and Battery
1.
Reason for the Job
__________________
Refer to the MPD TASK: 313300-01
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 31-33-00-710-015 Operational Test of the DFDR Underwater Locator
Beacon (ULB)
CMM 31-30-32
31-33-55-991-002 Fig. 402
3. Job Set-up
__________
NOTE : Make sure that a new Underwater Location Beacon is available.
____
Subtask 31-33-55-861-050
A. Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
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B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU RCDR/DFDR 7TU K16
Subtask 31-33-55-010-052
C. Get Access
(1)
Put the warning notices in the cockpit in position to tell persons not operate the flight controls.
(2)
Put the access platform in the position at the access panel 312AR.
(3)
Open the access panel 312AR and set the light switch 3LJ to the ON position.
4. Procedure
_________ Subtask 31-33-55-020-051
A. Remove the ULB from the DFDR.
(Ref. Fig. 402/TASK 31-33-55-991-002)
(1)
Remove the screws (1) and the cover plate (2).
(2)
Remove the ULB (3) from the mounting cradle (4). NOTE : If the ULB Type DK 100 is installed, send the ULB to the
____
related vendor to replace the battery.
Subtask 31-33-55-960-050
B. In the Workshop
(1) Discard and replace the ULB battery (Ref. CMM 31-30-32).
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Removal/Installation - Underwater Locator Beacon Battery
Figure 402/TASK 31-33-55-991-002
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Subtask 31-33-55-420-051
C. Installation of the ULB on the DFDR.
(1) Put the ULB (3) in position on the mounting cradle (4).
(2) Install the ULB (3) together with the cover plate (2) and the screws (1).
NOTE : Install the ULB with the water sensitive switch in lower____ position and make sure that the switch is clean.
NOTE : Rotate the ULB until the battery replacement date is readable.____
Subtask 31-33-55-710-052
D. Do the operational test of the Underwater Locator Beacon (Ref. TASK 31-33-00-710-015).
R R R NOTE : This operational test is not necessary, if you have done a test of____ the ULB in the workshop immediately before installation. The test in the workshop must obey the vendor instructions.
Subtask 31-33-55-865-054
R E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 7TU.
5. Close-up________
Subtask 31-33-55-410-052
A. Close Access
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