ROTORCRAFT FLIGHT MANUAL
CSP-HE/HS-1
Emergency and
Malfunction Procedures
MD 500
(Models 369HE/HS/HM
)
Revision 6
3-4
FAA Approved
F
Select landing area and maneuver as required.
F
If operating at reduced rotor RPM to extend glide or reduce rate of de−
scent, restore rotor RPM by lowering collective prior to flare out.
F
Flare as required for the terrain to reduce forward speed and rate of de−
scent. Level aircraft before ground contact.
F
Touch down in a level attitude, increasing collective pitch to cushion land−
ing.
F
Avoid the use of aft cyclic or rapid lowering of the collective pitch during
initial ground contact or any subsequent ground slide.
Conditions:
Engine Failure − Altitude above 8 feet and below 420 feet AGL
The Height − Velocity Diagram (Ref. Section V) depicts the combinations
of airspeeds vs. altitudes wherein a successful autorotation landing can be
made in the event of an engine failure. Flight within the cross−hatched
regions represent airspeed/altitude combinations from which a successful
autorotation landing may be difficult to perform. Operation within the
cross−hatched area should be undertaken with caution.
Procedures:
F
In the event of a power failure during takeoff/low level flight, the collec−
tive pitch must be initially lowered to maintain rotor speed. The amount
and duration of collective reduction depends upon the airspeed and height
above the ground at which the power loss occurs.
F
As the ground is approached, flare as required to reduce forward speed
and rate of descent.
F
Touch down in a level attitude, increasing collective pitch to cushion land−
ing.
F
Avoid the use of aft cyclic or rapid lowering of the collective during initial
ground contact or during ground slide.
