Aviation maintenance Business Process

ISO 10303-239 Activity model coverage

The ISO 10303 239 PLCS Application Activity Model (AAM) is an IDEF0 representation of the business activities that assist understanding of the scope and information requirements defined in AP239. The model is presented as a set of figures and a set of definitions of the activities and their associated information flows.

This DEX will support a subset of the activities and information flows. These are highlighted in yellow in the subsequent figures.

Activities and information flows that are out of scope of AP239 are marked with an asterisk.

ISO 10303-239 Application Activity model definitions

The following terms are used:

Collect data & provide feedback

action to collect and capture into the information technology infrastructure the data generated by support activities or by use of the product

NOTE   

Feedback includes:

• support task records, including product data collected by the task;
• product state and usage records;
• resource element state and usage records;
• product configuration information;
• any issues arising from work.

APSI

set of information, subject to configuration change management, that is established to develop and deliver support for a product in focus

NOTE   

This term corresponds to the EIA 649 term "product configuration information" which includes:

• product definition information that defines the product requirements, documents the product attributes and is the authoritative source for configuration definition;
• product operational information, used to test operate maintain and dispose of the product.

APSI and related information

set of assured and related information used to develop and deliver support for a product in focus, including feedback from using and supporting the product over its life cycle

NOTE    Related information includes records of the history of the usage or support of realized products, design and support analysis results and reasons why decisions were taken. Such information includes design and failure analysis records, logistic support analyses, running hours, environment descriptions, operating profiles; test results, records of maintenance activities, resources used, and faults found plus any other content deemed relevant to life cycle support.

product status

notification of the current state of a product receiving support, as confirmed by the authority controlling the work

support feedback

observation on the condition or usage of a product receiving support and on the execution of support activities

NOTE   

Support feedback is generated when tasks are performed on a product needing support. It includes information on:

• the operation, usage and location of the product or support element receiving support;
• the current configuration of the product or support element;
• the condition of the product or support element receiving support, before, during or after the support activity, recorded as properties, states or observations;
• the progress and status of work;
• the resources used to perform work;
• issues arising from work done, including proposals for change to the product or support solution.

work status

information on the progress of activities in relation to a support schedule

NOTE    This information on status is transient and will change as the work progresses.

DEX Business application

This DEX enables the transmission of information reporting on maintenance activities that have been undertaken on selected aircraft components and modules. It provides feedback data on removals, repairs, overhauls or rebuilds, installations and gains/losses to the aircraft operators inventory for reportable items.

This information is required by the aircraft operator to effectively manage the reportable items. It is also required by the aircraft suppliers when the aircraft is supplied on a service based contract in order that the supplier can know the configuration and operational status of the aircraft.

The following section outlines some of the activities that are reported by this DEX:

Maintenance activities

The following maintenance activities are reported on by this DEX:

Removal and evacuation

This activity reports when a serviceable or an unserviceable reportable item is removed from an aircraft or component and the item is not reinstalled on the same aircraft or component.

Repair / Overhaul

This activity reports when a serviceable or unserviceable reportable item is removed from an aircraft or component for repair, overhaul, or rebuild.

Installation / Removal

This activity reports when a reportable item is installed on, or removed from an aircraft or component.

Serviceability change

This activity reports when a serviceable item becomes unserviceable for any reason. For example, rejection due to a fault.

Part Number, Part type or Serial number Change

This activity reports when the Part Number, National/NATO Stock Number, and/or Serial Number of a reportable item is changed as a result of a manufacturers work order or other directive

Removal of Serviceable Reportable Items for Controlled Exchange.

This activity reports when any removal of a serviceable reportable component and module from one aircraft for installation on another aircraft. This is done within the same organization or in support of another organization.

Inventory activities

The following Inventory activities are reported on by this DEX:

Gains To Inventory

This activity reports when a reportable item is first placed in the aircraft operators inventory. This includes installed or uninstalled items. For example, when the reportable item is received from the supplier by the operator.

Loss to inventory

This activity reports when a reportable item is removed from the operators inventory. For example, when the reportable item has be decommissioned or transferred to another operator.