Table 1. Operator Preventive Maintenance Checks and Services
Not Fully Mission
Air Supply and
Check the air supply and return ducts (1
and 2) for holes and tears in the fabric.
Repair damaged ducts if possible, replace
duct if damage cannot be repaired.
Check outside surface of duct for any dirt
or debris. Clean dirt and debris from
exterior of duct with a clean dry rag.
Check for and remove any obstructions
inside of ducts.
Inspect straps (3) on ends of ducts for
broken buckles, cuts, abrasions, or other
damage that would prevent the ducts from
having a tight seal to the duct adapter or
Inspect the debris grill (4) on the end of
both ducts and ensure that the grills are
not broken or otherwise damaged.
There are holes, tears,
or other damage that
cannot be repaired and
that would permit air to
enter or escape
through the side walls
of the duct.
There are obstructions
within the duct that
cannot be cleared.
Straps on ducts are
Debris grill missing or