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.