TM 10-6640-233-10
CAUTION
Equipment operation is allowable with minor leakages (Class I or II). Of course, you must consider the fluid
capacity in the item/system being checked/inspected. When in doubt, notify your supervisor.
When operating with Class I or Class II leaks, continue to check fluid levels as required in your PMCS.
Class III leaks should be reported to unit maintenance.
h.
Leakage.
Leakage definitions for operator/crew PMCS shall be classified as follows:
Class I
Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
Class II
Leakage of fluid great enough to form drops but not enough to cause drops to drip from item being
checked/inspected.
Class III
Leakage of fluid great enough to form drops that fall from the item being checked/inspected.
i. Individual Equipment PMCS. PMCS for the laboratory equipment such as environmental control unit, refrigerator,
oven, etc., are contained in their respective TMs (refer to Appendix A for TM numbers).
2-5. Equipment is Not Ready/Available If Column. This column is used for identification of conditions that make the
equipment not ready/available for readiness reporting purposes or denies use of the equipment until corrective
maintenance is performed.
NOTE
The terms ready/available and mission capable refer to the same status; Equipment is on hand and
is able to perform its combat missions.
2-17
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