-
the green indicator light goes off
-
the amber OIL PRESSURE indicator light comes on (the pump changes from the motor to the pump mode)
-
the RAT speed decreases and stops
-
the amber OIL PRESSURE indicator light goes off when the pressure decreases to approximately 1550 psi (106.8687 bar).
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R R R R R R R R -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------- replace the RAT ground check module (Ref. TASK 29-22-52-000-001) and (Ref. TASK 29-22-52-400-001) - replace the RAT (Ref. TASK 29-22-51-000-001) and (Ref. TASK 29-22-51-400-001).
R **ON A/C 001-049, 051-061, 101-105, 201-203,
Subtask 29-22-00-860-081
E. Put the aircraft back to its initial configuration.
(1) Stop the Blue electric pump and the ground power cart to depressurize the Blue hydraulic system (Ref. TASK 29-10-00-864-003).
(2) On the maintenance panel 50VU, set the HYD/LEAK MEASUREMENT VALVES/B pushbutton switch to the on position.
(3) Do the EIS stop procedure (Ref. TASK 31-60-00-860-002).
(4) Disconnect and remove the PROTECTION EQUIPMENT - RAT.
(5) Remove the CONTROL UNIT - RAT.
Subtask 29-22-00-220-050-A
F. Inspection of the RAT
(1) Do a check of the RAT filter:
(a) Examine the clogging indicator of the RAT filter element:
1_ If the clogging indicator of the RAT filter element is popped out, replace the RAT at the next A-check (Ref. TASK 29-22-51-000-001) and (Ref. TASK 29-22-51-400-001).
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(2) Do a check of the blade angle position. NOTE : The indicator marks on the hub must be in line with the mark
____
on the blade roots.
Subtask 29-22-00-860-082
G. Put the aircraft back to the serviceable condition.
(1)
Pressurize the reservoir of the Blue hydraulic system to normal pressure (50 psi) (Ref. TASK 29-14-00-614-002).
(2)
Retract the RAT (Ref. TASK 29-22-00-869-002).
5. Close-up
________ Subtask 29-22-00-865-056
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 7XE.
Subtask 29-22-00-862-052
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
Subtask 29-22-00-410-053
C. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 197EB.
(3)
Remove the safety barriers.
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TASK 29-22-00-710-006 Operational Check of Ram Air Turbine Automatic Deployment WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______
START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE. WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______
CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE RAT TRAVEL RANGE IS CLEAR BEFORE YOU
_______
EXTEND/RETRACT THE RAT.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
1. Reason for the Job
__________________
Refer to the MPD TASK: 292000-05
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers
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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
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