Reversing the component replacement transaction

In this page, you can reverse the details of the selected component replacement transaction. Tell me more.

Select the “Reverse Component Replacement Transaction” link in the “Select Component Replacement #” page. Alternatively, select the hyperlinked component replacement number in the multiline of the same page.

The “Reverse Component Replacement #” page appears.

The system displays the following fields:

Date & Time Format

The format in which the date and time fields are displayed in this page. This format is displayed from the "User Preferences" business component based on the login user id. In case the format is not defined, the system displays the date and time format from the “Enterprise Modeling” business component by default.

The system displays the following in the “Component Replacement Details” group box:

Component Replacement #	The number identifying the component replacement transaction that you need to reverse.
Status	The status of the component replacement transaction.
Source Document Type	The type of the source document that serves as a reference document for the component replacement. The system displays one of the following: Line Maintenance WO - The work order generated for line maintenance. Component Work Order – The work order generated for shop maintenance. Hangar Work Order - The work order generated for major maintenance. Technical Log – The technical log number which acts as the reference document for this transaction. Others - Any other document. For example, repair orders, whose reference is used for maintenance of unserviceable parts.
Source Document #	The number identifying the source document associated with the transaction.
Station #	The station where the component replacement was done or must be carried out.

The system displays the following fields in the “Next Higher Assembly Details” group box:

Aircraft Reg #	The aircraft registration number for which the component replacement is done.
Position Code	The position code where the removed part was fitted.
Component Type	The type of the component, which could be “Engine”, “APU” or “Landing Gear”.
ATA #	The ATA chapter of the parent part, that identifies the system in which the component replacement is done.
NHA Part #	The parent part of the removed part number.
NHA Serial #	The serial number of the parent part.
NHA Part Desc	The textual description of the parent part.
NHA Component #	The component ID that uniquely identifies the parent part number and the serial number.

The system displays the following fields in the “Removal Details” group box:

Removed Part #	The part that has been removed.
Removed Serial #	The serial number of the part that has been removed.
Component #	The component ID of the removed part and serial number.
Part Description	The textual description of the removed part.
ATA #	The ATA chapter of the position code to which the removed part was attached. This indicates the system in which the part replacement has been done.
Tag #	The tag number given to the component after it is removed from the aircraft.
Component Condition	The condition of the removed component, which could be “Serviceable” or “Unserviceable”.
Removed By	The number identifying the employee that removed the component.
Removal Date	The date on which the part was removed from the position code.
Removal Time	The time at which the part was removed from the position code.

The system displays the following in the “Removal Reason Details” group box:

Removal Type	The type of the removal. The system displays one of the following: Scheduled - Indicates that the component is removed to carry out preventive maintenance operations such as lubrication, or the component removal is a scheduled removal. The schedules can be based on intervals, consumption or predictive triggers. Unscheduled - Indicates that the component is removed to carry out maintenance activity based on the outcome of equipment parameter inspections or on the breakdown of the equipment. Others - Cases of robbery can be categorized as “Others”.
Basic Removal	Indicates whether the component removal is “Basic” or “Non-basic”. The system displays “Yes”, when the component is removed due to a problem in the component. The system displays “No”, when the component is removed for accessibility reasons, that is, for removal of another component.
Reason #	The reasons for removing the part from the position code.
Remarks	Any additional remarks pertaining to the removal of the part from the position code (Alphanumeric, 256).
Comments	Any descriptive reason or comments for the removal of the component.

The system displays the following fields in the “Installation Details” group box:

Installed Part #	The part that is newly installed in the position code in place of the part displayed in the “Removed Part #” field.
Installed Serial #	The serial number of the part that is newly installed in the position code.
Installed Component #	The component ID identifying the installed part number and the serial number combination.
Part Desc	The textual description of the installed part.
Installation Date	The date on which the part is installed.
Installation Time	The time at which the part is installed.
Source of Installed Comp	The source of the installed component. The system displays one of the following: Inventory - Indicates the installed component is taken from the inventory. Cannibalization - Indicates the installed component is taken from some other aircraft. Loans - Indicates the installed component has been taken on loan from other operators. Pooling - Indicates the installed component is taken from the common repository.
Installed By	The number identifying the employee that has performed the installation.
Acceptance Ref.	The acceptance reference which may be a document or a text, indicates that the installed part # or the part # of the child component attached to installed part # / installed serial #, is “Conditional Effective” for any of the higher assembly maintenance object.
Effectivity Notes	Any additional information on the effectivity or suitability of the part to aircraft or component. The system displays the Effectivity Notes which are identified during confirmation of Component Replacement. The field displays the string “View Effectivity Notes” which is hyperlinked to launch the “View Maintenance Info. for Part” page which displays the maintenance information of the part.

The system displays the following in the “Reversal Details” group box:

User Defined Detail1	Any other additional details pertaining to the reversal of the removal or installation transaction (Alphanumeric, 30).
User Defined Detail 2	Any other additional details pertaining to the reversal of the removal or installation transaction (Alphanumeric, 30).
User Defined Detail 3	Any other additional details pertaining to the reversal of the removal or installation transaction (Alphanumeric, 30).
Remarks For Reversal	Any remarks or comments pertaining to the reversal of the removal or installation transaction (Alphanumeric, 150).

Click the “Reverse Installation” pushbutton, to reverse the component installation transaction.

Note: The system will not allow two or more users to simultaneously update the same component replacement details, for the same part number..

You can reverse the installation for the component replacement transaction whose status is “Replaced”. The system reverses the component installation transaction and changes the status as “Installation Reversal”. The system saves the login user name and the current server date as the “Reversal Date”.

The system removes the installed part # and serial # from the position code in the configuration of the specified aircraft. The system also removes the parameter values inherited from the parent component from the installation date and time till the current server date and time.

However, you cannot reverse installation if the installed part # and serial # has a CR # with removal date and time greater than the installation date and time.

If there is a change in the parameter value of the removed and/or installed component or any of its lower level children as on the current date and transaction date, the system updates the schedule details accordingly in the “Component Maintenance Program” business component.

Restrictions on reversal of part/serial removal attachment

You cannot reverse the attachment of part #/serial # to a NHA/aircraft during the effective period, if the process parameter “Allow Component Attachment?” for the restriction code of the part #/serial # is ‘No’.

On the contrary, if the restriction code of the part#/serial # allows component attachment/removal, the system proceeds with reversal.

(You can place restrictions on attachment/removal of part#/serial# in the “Manage Part Restrictions” activity of Aircraft by associating a restriction code that does not allow attachment/removal during the period between Effective From and To dates. Restrictions placed on part # via the restriction code apply to all serial #s of the part. Restrictions can also be placed on a specific serial # or on a range of serial #s of a part. Process parameters of restriction codes determine whether they facilitate component replacement. And these are defined in the “Set Process Parameters” page of “Define Process Entities” activity of Common Master.)

Click the “Reverse Removal” pushbutton, to reverse the component installation transaction.

Note: The system will not allow two or more users to simultaneously update the same component replacement details, for the same part number.

You can reverse the removal for the component replacement transaction whose status is “Installation Reversal or “Removed”. The system reverses the component installation transaction and changes the status as “Removal Reversed”. The system also deletes the record from the condition history for the removed part number and serial number that has a reference to this CR number. The system updates the status of the removed component as “Serviceable”. The system saves the login user name and the current server date as the “Removal Reversal Date”.

If a value exists in the “Installed Component #”, “Installed Part #” and “Installed Serial #” fields, then the stock quantity of the part number and serial number, or component number should be “Nil” in the “Stock Maintenance” business component.

The removed part # and serial # or component # is attached to the removed position code in the configuration. The system adds the parameter values to the component # inherited by the NHA component # since the removal date and time till the current server date and time.

The SOS disposition of the component is reverted to “No Fault Found”, the component condition to “Serviceable” and the component is attached to the aircraft from which it was earlier removed.

The system also ensures that the movement history of the component is not updated in the “Aircraft” business component after the reverse removal.

However, you cannot reverse removal in case of the following:

If there exists any CR # generated on the removed part # and serial # other than in "cancelled" or "Installation reversal" status.
If there is any component work order other than in “Cancelled” or “Closed” status, on the removed part # and serial #, with reference to the selected component transaction number.
If there is warranty claim for the removed part and serial number in “confirmed” or “released” status.
If there is an repair order generated on the removed part and serial number except in “Cancelled” status.
If the removed part and serial number is attached to any aircraft as on the date of reversal.

On reversal of the component replacement transaction for a component and its sub-assemblies in “Phased-Out” condition, the system performs the following:

Re-updates the condition of the component and its sub-assemblies to its previous condition and changes the status of the component and its sub-assemblies as “Active”.
Calculates the next schedule date for the work units of the components and child components, and removes the last performed date for the retirement work units.
Re-updates the component / sub-component ownership to its previous value, if any component ownership change has occurred during the CR.

If the "Auto update Line status of Tasks in Short Term Escalation as "Cancelled" option in the Set Options activity of Compliance Tracking & Control is set as Required, the system performs the following:

If the Removed Date & Time is earlier than STE Approved Date & Time, the system automatically sets Status of the STE in the Request Short Term Escalations screen as ‘Cancelled’ and Line Status in the View Short Term Escalation Details screen as ‘Cancelled’ for the record.
If the Removed Date & Time is later than STE Approved Date & Time, the system sets Status of the STE in the Request Short Term Escalations screen as ‘Pending’ and Line Status in the View Short Term Escalation Details screen as ‘Processed’ for the record.
In both the above scenarios, the system resets the schedules of of the below-listed attributes based on the escalation limits.

o NSV

o NSD

o Next Due Calc. On

o Calc. Ref. Date / Value

o Last Schedule Date / Value

o Remaining Value

o Short Term Esc. Ref #

Restrictions on reversal of part/serial removal

You cannot reverse the removal of part #/serial # from a NHA/aircraft during the effective period, if the process parameter “Allow Component Removal?” for the restriction code of the part #/serial # is ‘No’.

On the contrary, if the restriction code of the part#/serial # allows component attachment/removal, the system proceeds with reversal.

The system displays the following in the “Record Statistics” group box:

Created by	The name of the user who created the component replacement transaction.
Created Date	The date on which the component replacement transaction was created.
Rem. Confirmed By	The name of the user who confirmed the removal.
Confirmed Date	The date on which the component removal was confirmed.
Repl. Confirmed By	The date on which the replacement was confirmed.
Confirmed Date	The name of the user who confirmed the replacement.
Reversal by	The name of the user who reversed the component transaction.
Reversal Date	The date on which the component transaction was reversed.

Reversing the component replacement transaction – An overview

In this page, you can reverse the details of the selected component replacement transaction. The system displays the component replacement transaction number, its status, type and number of the source document that triggered the replacement and the station at which the replacement was done, parent of the replaced component, component removal and installation details. You cannot reverse the installation for a component replacement transaction whose status is “Fresh”, “Cancelled”, “Removal Reversed” and “Installation Reversal”. Also, you cannot reverse the removal for a component replacement transaction whose status is “fresh”, “cancelled” or “removal reversed”.

What you can do in this page

Reverse the component installation or removal transaction

You can reverse the installation or removal transaction. You can reverse the installation for the component replacement transaction whose status is “Replaced”. The system reverses the component installation transaction and changes the status as “Installation Reversal”.

Provide filter criteria to search for the component replacement transaction to be reversed.
Click the “Search” pushbutton.

The search results are displayed in the multiline.

Select the component replacement transaction that you need to reverse
Click the “Reverse Installation” pushbutton, to reverse the installation transaction.
Click the “Reverse Removal” pushbutton, to reverse the removal transaction.