MoDAvDEX Business Information Overview

Supported messages

The following messages shall be supported:

MoDAvDEXmessage_geographical_change

A message containing a record of a change of geographical location of a reportable item (asset). i.e. when a reportable item has moved to a new location.

This shall include:

• the reportable item;
• the previous location;
• the new location;
• the date when the change occurred.

It may also include:

• a record of the activity that lead to the change of location.

This message shall be sent when the change of geographical location is recorded.

MoDAvDEXmessage_ownership_change

A message containing a record of a change in ownership of a reportable item.

This shall include:

• the reportable item;
• the previous owner;
• the current owner;
• the date when the change occurred.

It may also include:

• a record of the activity that lead to the change of ownership.

This message shall be sent when the change of ownership is recorded.

MoDAvDEXmessage_serviceability_change

A message containing a record of a change in serviceability status of a reportable item.

This shall include:

• the reportable item;
• the serviceability status;
• the start and end validity dates of the status.

It may also include:

• identification of the maintenance work order that was raised when the reportable item became unserviceable;
• identification of the maintenance work order, the completion of which, resulted in the related asset becoming serviceable.

NOTE    Details of the maintenance work order that lead to the serviceability changes, any work done to the reportable item, any faults identified and addressed are provided in maintenance messages.

This message shall be sent when the change in serviceability status is recorded.

MoDAvDEXmessage_symptom

A message reporting when symptoms are associated with a reportable item. A symptom is an observation of asset behaviour that was unexpected and affected the performance of the asset.

This shall include:

• the reportable item;
• an identification of the observation;
• an identification of a request for work to investigate the symptom;
• when, how, on which system and by whom the symptom was observed;
• how the asset was being used when the symptom was observed;
• the effect that the symptom had on the usage, including any hazards or safety consequences.

This message shall be sent when the symptom is recorded.

MoDAvDEXmessage_scheduled_maintenance

A message containing a record of a standard maintenance task that has been scheduled, authorized to be performed on a reportable item and may have been completed.

This shall include:

• the reportable item;
• the work order that initiated the maintenance activity;
• the standard maintenance tasks performed;
• the time and resources consumed.

It may also include:

• any parts removed and fitted;
• the parent and end assets for which the work order was raised;
• any related work orders;
• the life of the reportable item consumed by the maintenance activity e.g. engine run hours during testing;
• if the work order has been extended, e.g. the work order was due at a 1000 flying hours, it is now due at 1100 flying hours.

This message shall be sent when:

• the work order is raised,
• any parts are removed or fitted,
• and the work order is complete or extended.

MoDAvDEXmessage_scheduled_engineering_instruction

A message containing a record of an engineering instruction that has been scheduled, authorised to be embodied on a reportable item and may have been completed.

This shall include:

• the reportable item;
• the work order that initiated the work;
• the engineering instructions embodied;
• the time and resources consumed.

It may also include:

• any related work orders;
• any parts removed and fitted;
• any changes to part number, supplier, or NSN of the reportable item as a result of embodying the engineering instruction;
• the parent and end assets or the reportable item against which the engineering instruction was raised;
• the life of the reportable item consumed by the maintenance activity e.g. engine run hours during testing;
• if the engineering instruction for the embodiment has been extended, e.g. the embodiment of the engineering instructions was due at a 1000 flying hours, it is now due at 1100 flying hours.

This message shall be sent when:

• the work order is raised,
• any parts are removed or fitted,
• and the engineering instruction is complete or extended.

MoDAvDEXmessage_unscheduled_maintenance

A message containing a record of an unscheduled maintenance activity that has been performed on a reportable item. Unscheduled maintenance activities are typically activities addressing faults.

This shall include:

• the reportable item;
• the time and resources consumed;
• the work order that initiated the maintenance activity;
• the parts removed and fitted.

It may also include:

• the parent and end assets for which the work order was raised;
• the standard maintenance tasks performed;
• any related work orders;
• the symptoms, faults or failures addressed
• changes to serviceability status as a result of performing the maintenance activity;
• the life of the reportable item consumed by the activity e.g. engine run hours during testing;
• identification of the part that failed leading to the fault;
• if the work order has been deferred - and if there are limitations of use/capability

This message shall be sent when:

• the work order is raised,
• any parts are removed or fitted,
• and the work order is complete or extended.

MoDAvDEXmessage_asset_lifing_extension

A message containing a record of an authorized extension to the life of an asset.

This shall include:

• the reportable item;
• the maintenance work order that is extended;
• the standard maintenance task(s) that is/are extended;
• the amount by which the life is extended.

It may also include:

• the parent and end assets.

This message shall be sent when the life of an asset is extended.

MoDAvDEXmessage_asset_fault_extension

A message containing a record of an authorized deferment of the maintenance activity to address a fault.

This shall include:

• the reportable item;
• the maintenance work order that is deferred;
• the standard maintenance task(s) that is/are deferred;
• the fault whose rectification has been deferred.

It may also include:

• the parent and end assets;
• limitations of usage.

This message shall be sent when a fault is deferred.

MoDAvDEXmessage_consumption_of_life

A message containing a record of an activity, other than a sortie that has consumed the service life of one or more assets. E.g. an increase in Flying Hours or a particular Fatigue Index.

This shall include:

• the reportable item that has had some of its life consumed during the activity;
• the activity that gave rise to the life consumption(s). This could be a usage activity such as a testing;
• the life property / properties that has / have been consumed.

It may also include:

• the parent and end assets.

This message shall be sent when an activity that has resulted in the consumption of the life of an asset has been completed.

MoDAvDEXmessage_sortie_feedback

A message containing a record of a sortie flown by an aircraft that has consumed the service life of one or more assets. E.g. an increase in Flying Hours or a particular Fatigue Index.

A message containing a record of the usage of an asset.

This shall include:

• the reportable item;
• the sortie flown by the reportable item that gave rise to the life consumption(s). ;
• the type of sortie (e.g. test flight, training run, wartime attack);
• the start time and location of the sortie;
• then end time and location of the sortie;
• the life property / properties that has / have been consumed.

It may also include:

• post usage asset consumption parameter values (e.g. life parameters);
• parent and end asset (of the asset for which the parameter is recorded).

This message shall be sent when an activity that has resulted in the consumption of the life of an asset has been completed.

MoDAvDEXmessage_inventory_loss

A message containing a record of the assets that have been removed from the operators inventory. For example, this may be when an asset is decommissioned or transferred to another operator.

This shall include:

• the reportable item;
• the date on which the reportable item was removed from the inventory;
• the new owner or the fact that it is decommissioned;

This message shall be sent when a reportable item is removed from the inventory.

MoDAvDEXmessage_inventory_gain

A message containing a record of the assets that have been added to the operators inventory. For example, this may be when an asset is transferred from another operator.

This shall include:

• the reportable item.

This message shall be sent when a reportable item is added to the inventory.

Out of scope messages

The following messages are defined within the BAES Schema for the initialization of a receiving system. The messages are intended to exchange the historical configuration status of an aircraft, plus the work done to it and its life consumed.

LITSinitialize_current_serviceability_status

A message containing a record of the current serviceability status of an asset on the date that the message is sent.

This shall include:

• the reportable item;

It may include:

• specific life measures and their values on the date that the message is sent.

LITSinitialize_current_location

A message containing a record of the current geographic location of an asset on the date that the message is sent.

This shall include:

• the reportable item;
• the current location.

LITSinitialize_current_owner

A message containing a record of the current ownership of an asset on the date that the message is sent.

This shall include:

• the reportable item;
• the current ownership.

LITSinitialize_current_configuration

A message containing a record of the current configuration of an asset in terms of its relationships to other assets.

This shall include:

• the reportable item.

This may include:

• the relationship to its immediate parent in a hierarchical structure, including the location and fitment date;
• the relationship to its immediate children in a hierarchical structure, including the locations fitment dates;
• the relationship to the end parent item in a hierarchical structure, including the location and fitment date.

LITSinitialize_engineering_instructions

A message containing a record of the engineering instructions that have been embodied on an asset.

This shall include:

• the reportable item;
• the set of engineering instructions embodied.

This may include:

• the maintenance work order that performed the embodiment.

LITSinitialize_work_orders

A message containing a record of the maintenance work orders that have been performed on an asset.

This shall include:

• the reportable item;
• the set of maintenance work orders performed.

This may include:

• the record of the maintenance activity that was performed in response to the order.

LITSinitialize_standard_maintenance_tasks

A message containing a record of the standard maintenance tasks that have been carried out on an asset.

This shall include:

• the reportable item;
• the maintenance work order that initiated each occurrence of each task;

This may include:

• the planned occurrences of any scheduled tasks.

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