Assign Parts to Modification
Explanation
This activity is used to define the part numbers for which the modification
is applicable.
Serial parts can be assigned to a modification in the Define
Modification/Assign Parts tab. The Decompliance Allowed
option is enabled by default, but can be disabled if you do not want
decompliance enabled for the modification. It has to be decided whether the
modification should be executed at next visit in workshop, at next interval
maintenance, or at a calculated time based on the defined operational parameter(s)
or calendar interval. This is determined by the values in the Next Visit
In Workshop and Next Interval Maintenance fields. If you want the
last due date to trigger the execution, enable the Last Due Date Trigger
Execution option. Observe the following examples:
- Example 1: Two initial inspections have been defined for the modification.
One with inspection interval 1000 Engine hours (EHR) and the other with
the inspection interval 200 Landings (LDG). If the Last Due Date
Trigger Execution option is not enabled, the initial inspection
is due once a defined interval is reached (i.e., whichever comes first).
However, if this option is enabled, the initial inspection is due when both
intervals are reached (i.e., whichever comes last).
- Example 2: Two terminating actions are defined for the modification.
One with a limit of 10000 Flight hours (FHR) and the other with a calendar
limit of 100 days. If the Last Due Date Trigger Execution
option is not enabled, the modification will become due based on whichever
of the defined limits are reached. However, if this option is enabled,
the modification will become due based on whichever limit is reached last.
Prerequisites
- Serial parts must be defined.
- A modification in the Preliminary status must exist.
The modification should not have the Documentation assignment
type.
- To select a maintenance code for the next interval maintenance,
the maintenance code has to be set up in a maintenance plan with an interval,
and the maintenance program has to be in the Active status. See
Define Maintenance Code
for more information.
System Effects
- When you define a part number and the assignment type registered
on the modification is set to By Serial Range, all part revisions
for serials with the defined part number are automatically created as assigned
part revisions in Define Modification/Assign
Part Revisions tab.
- If you define a part number and the assignment type registered on the
modification is set to By Revision All Serials and there exists
only serials of one part revision, the part revision is automatically created
as an assigned part revision in Assign Part Revisions
tab. If there exists serials of more than one part revision,
the part revisions must be entered manually.
- If the Decompliance Allowed option is enabled, the modification
can be decomplied with.
- If the Next Visit In Workshop option is enabled, a pending maintenance
event is automatically created for each assigned serial as soon as the modification's
status is changed to Active.
- If a maintenance code is specified in the Next Interval Maintenance
field, a pending event is automatically created for each assigned serial
as soon as the modification's status is changed to Active. The modification
event is automatically added to the same maintenance order as the interval
based maintenance event when assigning the event to work order.
- If the Last Due Date Trigger Execution option is enabled, the
latest due date is selected instead of the earliest due date when the modification
due calculation is run. By default, the earliest due date is selected.