01 March 2005
by pressure sensitive tape, SAE-AMS-T-22085 Type II
securing bubble wrap. Use preservation and sealing
tape, SAE-AMS-T-22085 Type II (Volume IV or V,
9-3.4.3. For equipment requiring ESD protection refer
9-3.5. ELECTRICAL CONNECTOR AND WAVE-
9-3.4. P A C K A G I N G AND STORAGE. Although
GUIDE CAPS. The use of plastic caps hinders con-
packaging is a function of the Supply Department,
tamination of equipment from airborne particles present
many times avionic equipment is packaged by
in repair shops/supply spaces.
maintenance personnel. This is for shipping between
shops, operating activities, or ships prior to/during
9-3.5.1. D u r i n g
deployments. Packaging methods are an important
maintenance, the plastic cap can become foreign
consideration because the time equipment is in transit
object debris (FOD) in an aircraft. In aircraft with
could be lengthy.
engine or equipment removed for inspection or
maintenance, many electrical connectors are exposed.
9-3.4.1. Proper packaging should include provisions
Military standard metal covers shall be used in lieu of
for the length of time equipment will be in storage.
plastic covers in these cases.
Equipment should be packaged for long-term protection
if the length of storage time is uncertain.
9-3.4.2. Local packaging of avionic equipment and
No tape other than pressure sensitive tape,
components shall apply the following procedures:
SAE-AMS-T-22085 Type II, is authorized for
use on wave guides or electrical connectors.
9-188.8.131.52. Plastic bags, A-A-1799 (Volume IV or V,
Air Force only refer to TO 00-25-234 for taping
of wave guide connectors.
storage. These bags shall be used during maintenance
9-3.5.2. If military standard metal covers are not
or repair operations of laminated circuit boards and
available, cap-off electrical connectors or waveguides
small electrical/electronic components.
with pressure sensitive tape, SAE-AMS-T-22085
Type II (Volume IV or V, Chapter 2). In no case will any
9-184.108.40.206. Barrier Material, Water Vapor Proof,
other tape be used to seal or cap-off electrical
provides excellent protection against moisture and
c o n t a m i n a t i o n . It is used during equipment
9-3.6. D E S I C C A N T S . Desiccants are normally
transportation and long-term storage under all weather
packaged in equipment crated for shipment or storage.
conditions. This material shall be used for long-term
In some cases, the desiccants are placed in systems
p a c k a g i n g of miniature/microminiature circuit
aboard aircraft. Desiccant, MIL-D-3464 Type II
components, laminated circuit boards, and other critical
(Volume IV or V, Chapter 2) is used to absorb moisture
avionic components. Barrier Material, Water Vapor
and lower the relative humidity when placed in a
Proof, MIL-PRF-131 Class 1, shall be sealed with
Sealing Machine, Electric Jaw (Volume IV or V,
9-3.6.1. Desiccants may be ineffective for the following
9-220.127.116.11. Unicellular polypropylene packaging foam,
a. Moisture may condense as water if the desiccant
protection against shock and moisture. If protection
against shock and handling is required in conjunction
with Plastic Bags, A-A-1799 (Volume IV or V,
b. Desiccant is not in the right location.
c. Rapid change in temperature may produce
unicellular polypropylene packaging foam held in place