CSP-HE/HS-1
Emergency and
Malfunction Procedures
ROTORCRAFT FLIGHT MANUAL
MD 500
(Models 369HE/HS/HM
)
Revision 6
3-7
FAA Approved
3-5. LOW ROTOR SPEED
NOTE
:
Early versions of the engine power out warning unit do not sense rotor rpm and
do not activate the audible and visual warning indicators.
Indications:
Red
ENGINE
OUT
warning indicator ON and audible warning in headset.
Drop in rotor RPM.
Change in noise level.
NOTE
:
The LOW ROTOR warning is activated when N
R
falls below approximately 460.
Conditions:
Low rotor RPM will most commonly be associated with the following:
Engine Failure.
Transient rotor droop during large, rapid increases in power.
Governor failure producing an underspeed.
Procedures:
F
Respond immediately to the low rotor RPM warning by adjusting collec−
tive to maintain rotor RPM within limits.
F
Check other Caution/Warning indicators and engine instruments to con−
firm engine trouble and respond in accordance with appropriate proce−
dures in this section.
3-6. EMERGENCY LANDING PROCEDURES
WATER LANDING
Conditions:
Power off.
Procedures:
F
Adjust collective pitch as necessary to establish autorotation.
F
If time permits, open doors and push door handle full down to prevent re−
latching.
F
Make autorotative approach, flaring as required to minimize forward
speed at touchdown.
