TM 10-1670-293-23&P
0010 00
UNIT MAINTENANCE
T-10C/T-10D TROOP BACK PARACHUTE ASSEMBLY
SALT/FRESH-WATER CONTAMINATION TEST
THIS TASK COVERS:
Inspection
INITIAL SETUP:
Equipment Condition
Personnel Required
Laid out on packing table or other suitable area.
92R(10) Parachute Rigger
INSPECTION
Look for a white crystalline residue. If evidence of salt-water/fresh-water contamination is found, refer to
the procedures detailed below:
RINSING PARACHUTE ASSEMBLY IMMERSED IN SALT-WATER
If the parachute, or any of its components, has been immersed in salt water in excess of 24-hours it will be
condemned. Additionally, if the parachute, or any of its components, has been immersed in salt water for
a period less than 24-hours, but cannot be rinsed within 48-hours after recovery, it will also be
condemned, unless the following actions are performed. Upon removal from the salt water, the parachute
is placed in a single heavy duty plastic trash bag, the top of the bag secured closed and kept in a wet
state until a rinse can be performed following normal rinse procedures. The bag must be doubled when
outside temperatures exceed 85 degrees F. The bags must be inspected after transport and storage to
insure the bag did not get torn and the assembly was allowed to dry. Parachutes recovered using this
method must be rinsed NLT than 7 days after the salt water immersion or be condemned. However, if the
cited time limitations can be met, then immediately upon recovery, suspend or elevate the parachute
assembly in a shaded area and allow it to drain for at least 5-minutes. Do not attempt to wring the fabric
or the suspension lines. Within 48-hours after recover, under the supervision of a qualified parachute
rigger (92R), rinse the recovered parachute assembly as follows:
1. Place the parachute assembly in a large watertight container filled with a suitable amount of fresh,
clean water to cover the assembly.
NOTE
If the salt-water-soaked parachute assembly is too large to be
placed into a rinsing container, then the rinsing process will be
affected by applying fresh, clean water to the assembly using a
hose.
2. Agitate the container contents by hand for 5-minutes.
3. Remove the parachute assembly from the container and suspend or elevate it in a shaded area,
allowing a 5-minute drainage period. Do not attempt to wring the fabric or the suspension lines.
4. Repeat the procedures in steps 1. through 3. above, twice, using fresh, clean water for each rinse.
5. After the third rinse, allow the parachute assembly to drain thoroughly. Upon completion of draining,
dry the assembly in accordance with the Drying Fabric Items procedures detailed below.
6. When dried, perform a technical/rigger-type inspection of the parachute assembly. Corroded metal
components, or corrosion-stained fabrics or suspension lines, will be either repaired or replaced as
prescribed by the MAC in WP 0039 00.
7. Record any repair, immersion, and rinsing in the parachute log record as shown in WP 0003 00.
0010 00-1
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