Engine Fire
Engine res may be caused by a malfunction with the fuel control unit or
improper starting techniques. Improper procedures such as starting with the
emergency power lever out of its NORMAL position, or providing fuel to the
engine when the gas generator speed is below 14% RPM, will tend to cause
a hot start which may result in an engine re. In the event of an engine re,
refer to the Engine Fire During Start checklist.
If an aircraft re is discovered while on the ground or on takeoff (prior to
committing to ight), the aircraft should be stopped as soon as possible and
evacuated.
Engine res originating in ight must be controlled as quickly as possible in
order to prevent major structural damage. Immediately shut off all fuel to the
engine and shut it down. An engine restart should not be attempted following
an engine re.
Fire or Smoke in Cabin
Fire or smoke in the cabin should be controlled by identifying the faulty
system and shutting it down. If oxygen masks are available, turn on the
oxygen system prior to shutting down the electrical system. This will open the
valve at the oxygen bottle and allow oxygen to ow to the masks even with
the electrical power turned off. Once the electrical system is turned off, the
oxygen masks may then be put on.
Cabin smoke may be cleared by opening the cabin ventilation controls. If the
smoke is dense, the door may be slightly opened and/or a storm window may
be opened to draw out the smoke. If the re gains intensity after opening the
door, it should be closed immediately. Use the cabin re extinguishers as
necessary to extinguish the cabin re. If either the forward or aft cabin re
extinguishers have been activated, ventilate the cabin prior to activating the
other extinguisher(s), to prevent excessive build-up of toxic residue from the
extinguishing agent.
The rst indication of an electrical re is often the smell of burning wire
insulation. Following the Electrical Fire In Flight checklist should eliminate the
electrical re.
WARNING: In the event of smoke or re, prepare to land the aircraft
without delay, while completing re suppression and/or smoke evacuation
procedures. If it cannot be visually veried that the re has been
completely extinguished, whether the smoke has cleared or not, land
immediately at the nearest suitable aireld or landing site.
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