CSP–520N–1
MD 520N (500N) ROTORCRAFT FLIGHT MANUAL
Emergency and
Malfunction Procedures
R
Original
3–10
FAA Approved
Procedures:
Aircraft Evacuation
F
A thorough preflight passenger briefing is essential for a quick and safe
evacuation of passengers and crew when fire is involved. How to release
seat belts, the opening of doors, the proper exiting of the helicopter
keeping head and hands low to avoid the main rotor, are all critical to
insure the safety of passengers and crew.
Procedures:
Fire extinguisher
F
Pilots should be familiar with the operating instruction and hazards
associated with the particular type of fire extinguisher installed in their
aircraft. Classes (type) of fire for which it is approved, operating
instructions, and hazards associated with its use are listed on the
extinguisher.
F
Use of a fire extinguisher on a cabin fire while still airborne is NOT
recommended and should only be considered after all other means to
extinguish and control the fire have been tried. The pilot’s first
responsibility is to fly the helicopter and land immediately. Once on the
ground, with passengers and crew evacuated, attention can be turned to
extinguishing the fire.
F
If a fire extinguisher is discharged in the cabin, use only the amount of
extinguishing agent necessary to extinguish the fire. This will minimize
the adverse effects of the particular agent being used in a confined and
occupied space. Ventilate the cabin area as soon as possible after
extinguishing the fire.
Use extreme caution when attempting to extinguish an aircraft fire
on the ground. The possibility of an explosion should not be
disregarded!
ENGINE FIRE ON THE GROUND
Conditions:
Engine fire during starting
An engine fire during start could be caused by an overloading of fuel in
the combustion chamber and a delayed ignition of the fuel resulting in
flame emanating from the engine exhaust. This condition is normally
accompanied by a rapid rise in TOT. To extinguish the fire:
Procedures:
F
Twistgrip
CUTOFF
F
Starter
MOTOR UNTIL TOT IS BELOW 150
°
C
F
Fuel shut−off valve
PULL TO CLOSE
WARNING
