LANDING GEAR DOWN AND LOCKED
When each SA is fully extended and locked, the relevant LH or RH green
triangular annunciator (MLG Down&Locked) illuminates and the
corresponding amber annunciator extinguishes.
Eventually, the three green lights NOSE, LH and RH are all illuminated and
the three amber lights are all extinguished.
Both VALVE1DOWN and VALVE2DOWN solenoids remain energized−and
pressure is maintained in all actuators - until the helicopter touches down.
When the helicopter is on the ground, the WOW microswitches de-energize
the two valves - LG extension/retraction system is no more pressurized - and
the LGCL is locked in the DOWN position again.