before the next scheduled PPM (1360 in the example above), the
aircraft must be placed in a Red/Black
status until all required
actions have been completed.
Part II of the PPM inspection method is considered a preventive
The PPM-PMS checklist has a dual purpose.
it details the requirements of the PPM-PMS inspection that must be
performed after an appointed number of flying hours or calendar days.
Second, it reduces the overall size of the PPM manual by listing items
that are common to all PPM elements.
The appointed number of flying
hours or calendar days between PPM-PMS inspections is stated in the
It is necessary that the PPM-PMS inspections be completed
at regular intervals.
However, if the forecasted flying hours for a
mission are greater than the number of hours remaining until the next
PPM-PMS inspection, the inspection should be completed before the
start of the mission. The PPM-PMS inspection should not be overflown
Periodic/PMS Inspection Method. Currently only "H-60" series
aircraft use the Periodic (PE) type inspection method.
system, two inspection elements are used.
These elements are referred
to as PMS-1, an hour/calendar PMD type inspection, and PMS-2, a
The two elements provide a systematic
examination of the aircraft and associated equipment.
that the inspection requirements under the periodic are always the
The Phase Inspection Method also uses the acronym PMS to refer
to some of its elements; however, the Periodic/PMS and PPM-PMS
inspection methods are distinctly different and must not be
Requirements listed in PMS checklists 1 and 2, are
defined as follows:
day) is like the PMD inspection, the
primary difference being when it is due. The inspection is to be
completed after 10 flying hours or 14 days whichever comes first.
This is a visual inspection that may require some limited operational
The disassembly of components is not required; but some
screens, panels, or inspection plates may need to be removed.
PMS-1 inspection is considered a recurring inspection that must be
listed on the aircraft DA Form 2408-18; however, the tolerance window
If there are an
insufficient number of flying hours available to complete a scheduled
flight, the current H-60 series PMS-1 checklist allows for an
extension of the due time, however, flight operations may exceed the
authorized extension only under the conditions stated in paragraph 2-2
Deliberate over flights of the inspection interval for the
purpose of utilizing the PMS-1 extension is prohibited.
inspection comes due before the hourly requirement, the PMS-1 must be
completed before the first flight of the mission day.