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and convulsions or unconsciousness could incur.
(b) Heat exhaustion is caused by the loss of large
amounts of fluid or electrolytes. The worker suffering from
heat exhaustion experiences extreme weakness or fatigue,
giddiness, nausea, or headache. The victim may
vomit or lose consciousness. The skin is clammy and
moist, the complexion is pale or flushed and the body
temperature is normal or only slightly elevated.
(c) Heat cramps are painful muscle spasms that occur
among those who seat profusely, drink large amounts
of water and do not adequately replace the body’s electrolyte
loss. The cramps can occur during or after work.
(d) Heat rash or prickly heat can occur in hot, humid
environments where sweat is not easily evaporated so
the skin remains wet most of the time.
(2) FIRST AID.
(a) Immediate attention is needed to stop the effects
of heat stroke. The efforts for heat stroke would concentrate
on lowering the body temperature by loosening tight
clothing and soaking the clothing with water, removing
the victim to a cool and shady area and fanning the head
and upper body vigorously.
(b) Resting in a cool place and drinking plenty of water
or liquids containing electrolytes is usually all that is
needed for a heat exhaustion recovery.
(c) Lightly salted liquids or an electrolyte solution can
3-67
relieve heat cramps or muscle spasms.
(d) Loose garments and good personal hygiene is the
best prevention against heat rash.
(3) PRECAUTIONS. Work, using the buddy system.
Watch out for each other. Be conscious of those around
you. Pace yourself and take frequent breaks. The key to
adapting to high temperatures is fluid intake—an 8 ounce
glassful every quarter-hour, a quart an hour, two gallons
during an 8 hour shift. There is know need to remove
personnel protective clothing to rest just step out of the
immediate work area and stop working. Monitor body temperature.
Don’t hesitate to tell others how you feel.
f. HIGH PRESSURE SYSTEMS. The hydraulic system
consists of a reservoir, pumps, accumulators and tubing
that interconnects the system. The fluid is circulated and
stored under pressure in the accumulator. Hydraulic fluid
under pressure operates the landing gear, nose gear
steering, brakes and wing flaps.
(1) HAZARD. Cutting into pressurized hydraulic line
will release the fluid in a fine mist that is toxic and flammable.
If sprayed on hot surfaces the fluid may ignite. A
hydraulic fire produces a torch effect, or if confined, the
fuel vapors may explode. Broken composite debris will
wick spilled hydraulic fluid.
(2) FIRST AID. See Skydrol.
(3) PERSONAL PROTECTION. See Skydrol.
g. LIQUID OXYGEN OR LIQUID OXYGEN CONVERTER
BOTTLES (LOX).
(1) HAZARDS. Liquid oxygen bottles may leak or
vent because of overheating, crash impact, or ruptured
seals. Liquid oxygen forms combustible and explosive
mixtures when in contact with flammable or combustible
material like wood, cloth, paper, oil, kerosene. Contact
will cause frostbite. Gas is heavier than air and will collect
and stay in low areas. Containers may explode when
exposed to fire (BLEVE).
(2) PUBLIC SAFETY. Stay upwind. Determine extent
of problem. Isolate the area of release or fire and
deny entry. Remove all ignition sources. Evacuate the
area in all directions when LOX bottle is exposed to fire.
(3) PROTECTIVE CLOTHING. Fight fire with full protection
and SCBA.
(4) FIRE. Cut off the flow of liquid oxygen or fuel.
Blanketing or smothering agents are ineffective. If flammable
or combustibles are present, use large amounts
of water at the seat of the fire, continue through to the
TO 00-105E-9
source of the LOX leak and apply water until the ice forms
and seals the leak. If water is not available, allow natural
venting to occur with fire fighters at a safe distance with
AFFF hoses in ready positions during the venting process.
(5) FIRST AID. Provide basis life support as needed.
Warm frostbite area in very warm water.
h. VITON. Viton is a trademark for a series of
fluoroelastomers found in small quantities throughout the
aircraft. In small quantities it poses as no threat to firefighting
or for the initial response. Some aircraft does contain
large quantities. Runoff from fire control may cause
pollution.
(1) HAZARD. Produces highly toxic combustion products
like hydrogen fluoride, carbonyl fluoride, carbon monoxide
and low molecular weight fluorocarbon fragments.
Creates corrosive residue like hydrogen fluoride.
(2) PUBLIC SAFETY. Stay upwind. Ventilate closed
　
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