TO 00-25-172 - Robins Air Force Base

TO 00-25-172
vice some aircraft, e.g., E-3A. The mixture consists
of 62 percent uninhibited ethylene glycol and
38 percent reagent water (EGW).
(2) Environmental fluid servicing vehicle/cart positioning
for aircraft servicing will be accomplished
in accordance with procedures for positioning fuel
vehicles. The fluid servicing vehicle/cart will be
bonded to the aircraft before hoses are connected
to aircraft.
Aircraft alcohol vapors are toxic and adequate
ventilation must be provided in areas where alcohol
is handled. Never work in a confined area or
space without mechanical ventilation or respiratory
protection. Most alcohols are flammable liquids.
c. Water-alcohol mixtures are used for thrust augmentation
in turbojet engines and for Anti-Detonation Injection
(ADI) or internal coolant in reciprocating engines.
Quality control requirements are covered in TO 42C-
1-16. Water-alcohol servicing vehicle positioning for
aircraft servicing will be in accordance with procedures
in TO 36A12-13-1-131CL-1.
4.29 AIRCRAFT DE-ICING.
De-icing fluid can be applied to an aircraft with any or all of
its engines operating as long as the following apply:
a. Personnel and equipment must remain outside the individual
aircraft engine danger areas.
b. Avoid spraying any de-icing fluid into any engine intakes,
aircraft ventilation, Environmental Control System
(ECS) air inlets or Jet Fuel Starters (JFS) inlet and
exhaust areas.
c. Do not apply de-icing fluid during any fuel servicing
operations.
d. Do not apply de-icing fluid when any LOX equipment
is within 25 feet. (De-icing fluids can be applied to
aircraft having installed LOX converters as long as the
access doors are closed.)
4.30 AIRCRAFT TIRE SERVICING.
The following general guidance applies to all aircraft installed
tire inflation operations in excess of 50 psi.
a. Servicer shall comply with specific operating instructions
and safety precautions prescribed for aircraft being
serviced and inflating tools and servicing units being
used.
b. Impact resistant safety goggles or impact resistant
safety glasses with sideshields shall be worn by the
tire servicer.
c. The nitrogen or compressed air source used for servicing
shall have a serviceable regulator for controlling
service line pressure.
d. Servicing with compressed nitrogen shall be done only
with Class I (water pumped) nitrogen.
e. An approved, calibrated tire inflating tool with relief
valve and minimum ten foot servicing hose shall be
used during tire inflation.
f. Servicer shall be positioned in front or aft of tire being
serviced during inflation, at full length of inflating
tool’s hose. Hose shall not be tightly stretched. The
immediate area to either side of tire being inflated shall
be clear of personnel. (See Figure 4-2.)
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