01 March 2005
e. Heavy Corrosion. Place component to be cleaned
in a basket or on a grate or stand (preferably stainless
steel) and submerge in CT-1 solution 1 inch above the
2-188.8.131.52.1. CT-1. CT-1 is biodegradable. Disposal
bottom of the container for approximately 10 minutes.
depends on the contaminant being removed and the
applicable state and local regulations. Landfill solids at
permitted sites via licensed contractor in accordance
with applicable federal, state and local regulations.
Once the component is submerged into the
cleaning agent, it should be checked for effect
2-184.108.40.206.2. CT-2L. Landfill solids at permitted sites
on any markings after 1 to 3 minutes and
via licensed contractor. Used products may be classified
verified every 3 to 5 minutes thereafter.
as hazardous waste (ignitable) due to low flash point
and may be incinerated or burned for energy recovery.
CT-2L has a heating value of 20156 BTU/lb. Either
option must be performed in accordance with federal,
If component is not cleaned in 10 minutes,
state and local regulations.
component should be removed and inspected
to determine whether to resoak in the CT-1
2-5. CLEANING MATERIALS, EQUIPMENT, AND
f. Soak or spray with deionized water to remove
2-5.1. A V I O N I C CLEANING MATERIALS. The
soil and CT-1.
following paragraphs provide information to ensure
the proper selection and application of avionic cleaning
g. If soil is not removed, lightly scrub and repeat
steps d through g.
2-5.1.1. Availability of Materials. Only materials,
equipment, and techniques approved by the applicable
parent service organization shall be used on military
aircraft and avionic systems. Volume IV and V,
CT-2L shall not be heated or diluted with
Chapter 2 (Consumable Materials), Volume IV and V,
water. When heated above flash point of 140F,
Chapter 3 (Equipment for Corrosion Control), and
CT-2L will release vapors. Vapors when mixed
with air and exposed to an ignition source can
Equipment) are provided to ensure the availability of
burn in an open environment or explode when
approved materials and equipment.
220.127.116.11. Materials Used for Cleaning. Table 2-4
h. CT-2L Soak Method. Using a basket, grate, or
contains a list and description of the authorized cleaning
stand (preferably stainless steel) in the bottom of the
materials for avionic equipment. Cleaning can be
CT-2L container, soak component in the agent for 2 to
accomplished as follows:
5 minutes. Water will drain to the bottom.
i. CT-2L Spray Method. Spray clean component
with CT-2L paying particular attention to areas where
Some of the materials identified in Table 2-4
can create hazardous conditions or damage
e q u i p m e n t unless used strictly in the
j. If residue is still present, soak or spray in
applications and manner described. Authorized
accordance with step h or i.
alternative materials are included in this
manual, where applicable, to allow for potential
k. Blow off CT-2L in the spray washer (CTM4 or
CTM2). This step will decrease drying time and
a. Solvent cleaning - solvents are effective in
dissolving grease and oil. Solvents can be applied by
l. Dry using a heat lamp, hot air, or a drying oven.
wiping, brushing, soaking, or spraying.