-
the RAT triangle symbol is shown white.
At the RAT stowage area:
-
the RAT fully extends.
On the glare shields:
-
the MASTER CAUTION light comes on and you can hear a single chime.
On the HYD page of the lower ECAM DU:
-
the RAT triangle symbol changes to green when the RAT is fully extended.
On the upper ECAM DU:
-
the legends RAT FAULT and RAT OUT are shown in amber.
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3. On the RAT ground control-panel 3GE:
-set the switch LAMP TEST to the test position and hold it there.
-release the switch LAMP TEST.
4.
Set the 28VDC switch to the ON position.
5.
Manually set the blades of the RAT out of line with the leg assembly.
6.
Pressurize the Blue hydraulic system (Ref. TASK 29-10-00-863-003).
7.
On the RAT ground control-panel 3GE:
-set the stow switch to the STOW position and hold it there.
On the RAT ground control panel 3GE:
-
the interlock warning lamp comes on,
-
the actuator pressure lamp comes on,
-
the RAT stowed lamp comes on.
-all lamps go off on the panel 3GE.
-
the red actuator pressure light comeson.
-
the RAT starts to retract but stops when it has travelled 8.5 deg.
-
the interlock warning lamp comes on in amber.
-
the red actuator pressure light goes off.
NOTE : If there is a fault, the RAT may
____ not stop when it has travelled
8.5 deg. If this happens, you must release the STOW switch before the RAT comes into contact with the aircraft. The RAT will then stop and go back to its fully extended position. If the RAT does not stop, retract it with the blades in line with the leg assembly and
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ACTION RESULT -------------------------------------------------------------------------------
replace the RAT at the next
opportunity.
8. On the RAT ground control-panel On the RAT ground control-panel 3GE:
3GE:
- release the stow switch. - the stow switch moves to the center
position.
- set the stow switch to the - the interlock warning lamp goes off.
RESET position.
- release the stow switch. - the stow switch moves to the center
position.
9. Manually set the blades of the
RAT in line with the leg
assembly.
10. On the RAT ground control-panel
3GE:
- set the stow switch to the - the RAT retracts to its stowage
STOW position and hold it position.
there.
On the RAT ground control-panel 3GE:
- the red actuator pressure light comes
on,
- the green RAT stowed light comes on.
11. On the RAT ground control-panel On the RAT ground control-panel 3GE:
3GE:
- release the stow switch. - the stow switch moves to the center
position,
- the red actuator pressure light goes
off after a short time.
12. On the overhead panel 21VU: At the RAT stowage area:
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