9. Fluid leakage. The following are definitions of the types/classes of leakage for determining the status of fluid systems. Study them properly and remember: When in doubt, notify your responsible commander.
- Class I. Seepage of fluid 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 fall from item being checked/inspected.
- Class III. Leakage of fluid great enough to form drops that fall from the item being checked/inspected.