PMCS Leakage Definitions
It is necessary to know how fluid leakage affects the status of the collapsible fabric water tank. The
following noted items are types/classes of leakage needed to be able to determine the status of the
collapsible fabric water tank. Learn these leakage definitions and remember when in doubt, notify
Report Class III and IV leaks to the Supervisor or to Unit Maintenance.
Failure to heed this caution can cause damage to equipment.
Equipment operation is allowed with minor leakages (Class I or
II). Consideration must be given to fluid capacity in the
item/system being checked/inspected.
When operating with Class I or II leaks, continue to check fluid
levels as required in PMCS.
Seepage of water (as indicated by wetness or discoloration) not great enough to form
Leaks of water great enough to form drops but not enough to cause the drops to drip or
run from the faulty area.
Leaks of water great enough to form drops that fall, run, or collect in puddles near the
Leaks found under the tank. There is evidence of dampness on the ground around the
tank. Volume of water in tank is less than it should be.