Maintenance Action Form, OPNAV 4790/60, that
documents maintenance data, the Single-Item
Requisition System Document, DD Form 1348, that
documents supply data, and the Naval Aircraft Flight
Record, NAVFLIR, OPNAV 3710/4, that documents
flight data. The data on these forms are source data for
the Maintenance Data System (MDS). Source
documents furnish the input information for the MDS
and must be completely accurate.
Data collection and reporting systems ensure that
the basic data that is generated by maintenance
technicians and material control personnel is
documented. Management uses this data to make
decisions about the day-to-day maintenance effort as
well as decisions about manpower and material needs.
As an AZ, you should understand the types of
information that are recorded on source documents
since you will initiate or assist in their initiation. The
information recorded on source documents is the
source for entries recorded in aircraft logbooks,
aeronautical equipment service records (AESRs), and
other maintenance records.
MAINTENANCE ACTION FORM (MAF)
The Maintenance Action Form (MAF), OMA
MAF, (fig. 4-4) documents an on-equipment
maintenance action (a maintenance action that is
performed on a complete end item) or a removal and
subsequent processing of a repairable component
(off-equipment maintenance) by an intermediate
maintenance activity (IMA). MAFs document
maintenance actions such as the following:
Repair work on equipment that does not involve
removal of defective or suspected defective
repairable components
That portion of a special, conditional, corrosion,
phase acceptance, or transfer inspection that
involves the search for (not repair) defects
(commonly referred to as the look phase of an
inspection)
Fix phase maintenance action that involves the
correction (repair) of a discrepancy that is
discovered during the look phase of a scheduled
inspection
MAFs often document a maintenance action taken such
as the following:
Removal of a component for check, test, or
service
Removal and replacement of an item for
cannibalization
Removal and replacement of repairable
components within end items
Removal or installation of a component for
mission configuration change as designated by
the aircraft controlling custodian (ACC); for
example, the removal or installation of buddy
stores in compliance with an ACC directive
MAFs also document man-hours such as in the
following maintenance actions:
Man-hours that are spent in troubleshooting
Man-hours that are accumulated during a work
stoppage for lack of a part or to complete other
maintenance
Accumulated man-hours on a job that is closed
out due to an aircraft accident
Accumulated man-hours during or at the end of
a reporting period for a job, required by the
ACC, that was not completed
Maintenance action and man-hours by an
assisting work center in support of a primary
work center
Maintenance action and man-hours in support of
a repairable item that is processed through an
IMA
Finally, MAFs document for-the-record action such as
in the following maintenance actions:
Incorporation of a technical directive change
and associated maintenance action
Collection of subsystem capability and impact
reporting (SCIR) data
Record of the ordering and the issuing of a
repairable component, subassembly, or part
Preservation and depreservation maintenance
actions
Terms and Codes
Except for the Narrative Description of
Discrepancy and Corrective Action portion of the
MAF, maintenance data is recorded on the MAF in
coded form. Below is a list of terms and codes that are
used when maintenance actions are documented. For a
detailed description of terms and codes that are used to
4-11
