Define Inspections on Modification
Explanation
This activity is used to define initial and continued inspections that should
be performed prior to terminating the modification.
Initial and continued inspections are performed as recurring inspections
until the terminating action is performed. The initial inspections are normally
used to determine if the continued inspections or terminating action of a modification
is required or not. The continued inspections are normally used when the initial
inspection revealed condition that requires more/less frequent inspections.
Each step of the inspection is possible to define with one or more operational
parameters and/or calendar interval. Terminating actions are defined by an operational
parameter value, a calendar interval or as the next visit in workshop/next interval
maintenance. When an inspection has been executed with remarks, it is possible
to proceed to the next step of the inspection or to force the terminating action
on the serial. You are required to indicate the next step to which to proceed
when reporting the inspection, locally in IFS/Fleet and Asset Management or
on the work order. It will be possible to define two steps per part, with an
implicit third step:
- Step 1 determines the intervals of the initial inspection.
- Step 2 determines the increased or decreased incidence of the inspections.
- Step 3 is an implicit step that leads to the embodiment of the modification.
The third step is a terminating action.
An inspection for a modification might proceed as follows:
- Inspect aircraft every 400 FHR (flight hours) for evidence of cracks.
If nothing is found after 2000 FHR from the effective date (recurs until
2000 FHR), terminate the inspection.
- If evidence of cracks are found after 400 FHR, increase the intensiveness
of the inspections to 200 FHR. If nothing is found after 4000 FHR from the
effective date, terminate the inspection.
- If evidence of cracks are found after 200 FHR, the modification must
be embodied on the serial. Calculation of the due date to comply with the
modification will start from the last execution of the 200 FHR inspection
on the serial. Intervals to comply with the modification can be defined
in operational parameters, calendar or such as the Next Visit in Workshop
field.
To define inspections, go to the Define Modification/Execution
tab and enter required information:
- If you enter an operational parameter, the inspection interval and inspection
interval limit must be specified.
- If the initial inspection or continued inspection is to take place based
on calendar time (instead of or in addition to operational use), a calendar
interval, calendar unit, and calendar limit must be specified.
- Intervals for continued inspections must either be more frequent or
less frequent than the intervals defined for initial inspections.
The description of what should be inspected and how is done by connecting
task cards to the inspections. If the IFS/Complex Assembly MRO solution is used,
the description of the work to be done is defined by use of repair codes in
manufacturing.
Prerequisites
- A modification with the Preliminary status must be defined and
parts must be assigned to the modification prior to the definition of the
inspections.
- Before Continued Inspections can be registered, you must have first
registered Initial Inspections.
System Effects
- Modification due calculation can be run to calculate the due dates for
the initial and the continued inspections.
- When the modification is calculated, all intervals will be calculated
and compared to the values for the serials that has the Initial Inspection
modification execution type in the Modification
Details/Assign Serials tab, and which ever interval that is first
reached will trigger the inspection to become due.
- When the modification is calculated, all intervals will be calculated
and compared to the values for the serials that has the Continued Inspection
modification execution type in the Assign
Serials tab, and which ever interval that is first reached will
trigger the inspection to become due.