Update of computation basis controls - Section A:
The system updates the NSD / NSV computation basis controls ‘Next Due Calc. On’, ‘Calc. Ref. Date’ and ‘Last Schedule Date / Value’ for aircraft / component tasks, under various scenarios, as follows:
Scenario |
Compliance Status |
Next Due Calc. On |
Calc. Ref. Value / Date |
Last Schedule Date / Value |
On adding task, if no schedules are available (Aircraft task) |
Pre-Compliance |
Blank |
Blank |
Blank |
If 'Date based schedules' gets copied from 'Maintenance Task' component or 'Model Program', and NSD is computed based on ‘Reference Basis’ - Operational Date or Induction Date (Aircraft task) |
Pre-Compliance |
Induction / Operation Date |
Corresponding Date |
Not Applicable |
On addition of component task |
Pre-Compliance |
Mfr. Date |
Corresponding Date |
Not Applicable |
NSD computation based on 'Threshold / Interval Value' entered |
Pre-Compliance |
Initial Interval |
Threshold / Interval Value |
Not Applicable |
NSD / NSV computation based on ‘Update Basis’ - Time Window or Schedule |
Post Compliance |
Time Window / Schedule |
Last Due Value / Date |
Last Due Value / Date |
NSD / NSV computation based on ‘Update Basis’ - Actual Completion |
Post Compliance |
Actual Completion |
Last Performed Value |
Last Due Value |
On addition of a task with 'Initiated / Reset by' set as "Related Task Compliance" |
Related Task Compliance |
Not Applicable |
Not Applicable |
Not Applicable |
On compliance of a parent 'Initiate Schedule' task |
Related Task Compliance |
Not Applicable |
Not Applicable |
Last Due Value / Date |
On compliance of parent 'Initiate Schedule' task will trigger its 'Initiate Schedule' "Related Task Compliance" task |
Related Task Compliance |
RTC |
Last Performed Date / Value of parent task |
Not Applicable |
NSD / NSV computation based 'Schedule Reset Basis' set as "Last Schedule" |
Short Term Escalation |
STE : Last Schedule |
Last Due Value / Date |
Last Due Value / Date |
NSD / NSV computation based 'Schedule Reset Basis' set as "Actual Completion" |
Short Term Escalation |
STE : Actual Completion |
Last Performed Value / Date |
Last Due Value / Date |
On modifying interval for task having Position Based Schedule (PBS) |
Pre-Compliance |
PBS : Mfr. Date / PBS : Initial Interval |
Corresponding Date / Threshold or Interval |
Not Applicable |
On modifying interval for a complied task having position based schedule (complied with in the permitted limit of time window) |
Post Compliance |
PBS : Time Window |
Last Due Date / Value |
Last Due Value / Date |
On modifying interval for a complied task having position based schedule (complied with in the limit on last compliance or 'Update Basis' is set as "Actual Completion") |
Post Compliance |
PBS : Actual Completion |
Last Performed Date / Value |
Last Due Value / Date |
On compliance of parent task triggering its 'Initiate Schedule' "Related Task Compliance" task |
Post Compliance |
PBS : RTC |
Last Performed Value of parent task |
Not Applicable |
NSD computation based 'Schedule Reset Basis' set as "Last Schedule" |
Short Term Escalation |
PBS-STE : Last Schedule |
Last Due Date / Value |
Last Due Value / Date |
NSD computation based 'Schedule Reset Basis' set as "Actual Completion" |
Short Term Escalation |
PBS-STE : Actual Completion |
Last Performed Date / Value |
Last Due Value / Date |