WARNING
Following the pressure loss in N.1 main hydraulic system avoid
landing and/or operating in conditions which require a high
degree or maneuverability (i.e. avoid operating in enclosed areas,
helicopter heading not windward, in particular with wind from the
right).
PRESSURE LOSS IN N.2 MAIN HYDRAULIC SYSTEM
INDICATIONS:
EDU 1 : SERVO 2 caution message and
MASTER CAUTION light ac-
tivated.
EDU 2 : MAIN HYD 2 system pressure
below minimum.
Cyclic, pedal and collective : No change in control force.
Proceed as per failure of N.1 main hydraulic system.
Land as soon as practical.
NOTE
In the event of pressure loss in N.2 main hydraulic system there
is sufficient pressure in the accumulator of the normal utility
hydraulic system to operate the toe brakes.
JAMMING OF A SERVO VALVE
The helicopter is equipped with three hydraulic servo actuators, ″tandem″ type,
on main rotor controls (cyclic and collective) and with one hydraulic servo
actuator, single body type, on tail rotor control (pedal).
RFM A109E
R.A.I. Approved 3-43
Rev. 11
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