7/25/2019 Adjustment of the Technical Status at Equipment Dismantling
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SAP
Adjustment of the technical
status at equipment dismantlingAn enhancement of the industry Defense And Public
Security
© by SAP 5/16/2014
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Table of Contents1 Current situation and motivation .................................................................................................... 2
2 New functionality to adjust the technical status ............................................................................ 5
2.1 Overview.................................................................................................................................. 5
2.2 Description of the new functionality in detail ......................................................................... 6
2.2.1 General remark on functionaluity ................................................................................... 6
2.2.2 Mode 1: After dismantling of an equipment ................................................................... 6
2.2.3 Mode 2: Take up backlog ................................................................................................ 8
2.3 Customizing/Configuration ..................................................................................................... 9
2.3.1 How to switch on the functionality? ............................................................................... 9
2.3.2 Determination of the notification type for notification which is created in this process
as replacement ................................................................................................................................ 9
2.3.3 Determination of the technical status to sign the relevant status.................................. 9
2.4 Process flow ........................................................................................................................... 11
2.5 Report /ISDFPS/TST_ADJ_AT_DISM ...................................................................................... 12
2.5.1 Purpose of the report .................................................................................................... 12
2.5.2 Parameters of the report............................................................................................... 12
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1 Current situation and motivation
Figure 1 is showing the simplified technical structure of an aircraft.
Figure 1 Technical structure of an aircraft
At the very top functional location AC the master equipment AC is installed
During the flight operation of the aircraft AC the turbine and the afterburner of the engine number 1
represented by the equipment structure below equipment ENGINE01 is damaged.
Due to this the notifications
N1 with reference to equipment TURBINE01
N2 with reference to equipment AFTERBURNER01
are created to document these incidents.
To document the operational disability of the aircraft to fulfill its flight operations these notifications
are provided with a technical status. This technical status does not describe the real cause of the
disability as this is not its purpose. For the technical status the detail that a blade in the turbineTURBINE01 is damaged and has to be repaired is not of interest. This repair operation is the part of
the MRO process. The technical status is reflected to the master equipment AC to indicate the
disability to fly at a central point e.g. by using the Status Board functionality of DFPS (see Figure 2).
In the example the two technical status values
Red cross
Red dash
are used, where the priority of the red cross is higher that of red dash.
Please keep in mind, that only relevant technical status are reflected to the master equipment! A
singed or deleted technical status is not reflected to the master equipment!
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Figure 2 Technical structure of an aircraft, document the incident
For the MRO process the equipment ENGINE01 has to be dismantled via transaction IE4N to repair
the blade in the turbine and the afterburner. Doing this,
an additional notification N3 for the equipment ENGINE01 is created in addition indicating
the real cause for the dismantling
and a structure gap for the dismantled equipment ENGINE01 is created
via transaction IE4N. The damaged equipment might be passed to a stock for serviceable or
unserviceable parts.
The technical status inside notifications is kept and although the equipment ENGINE01 is dismantled
and isn't part of the aircraft anymore it influences the technical status of the aircraft represented by
master equipment AC (see Figure 3).
This leads to confusing situations inside the Status Board. An object - equipment ENGINE01 - that is
not relevant for the aircraft anymore, has an influence on the technical status of the aircraft. This
status is kept even though a new engine was installed or the former, dismantled engine ENGINE01
was scrapped.
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Figure 3 Dismantled equipment ENGINE01 and influence on technical status
To stop this confusing situation a functional enhancement is introduced which is described in the
next chapter.
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2 New functionality to adjust the technical status
2.1
Overview
The starting situation is the same than described in the example in chapter 1.
The difference, if the enhanced functionality is used, is starting with the dismantling of equipmentENGINE01 with transaction IE4N.
Following steps are performed due to the technical status while dismantling the equipment (see
Figure 4):
A new notification N4 is created with reference to the installation location of equipment
ENGINE01 which is the functional location AC-ENG01. Inside the notification the most critical
technical status of all the notifications and/or orders related to the dismantled equipment
and its’ subordinate equipment structure is safeguarded. In our example the red cross of
equipment TURBINE01.Please keep in mind that the notification N3 comes with the dismantling by the transaction
IE4N. This is existing IE4N functionality and not part of the DFPS functionality.
Depending on configuration the technical status of the notification N1 and N2 is deleted or
signed . In our example the technical status inside the notifications is signed. This means,
that these technical status haven’t got any influence on the master equipment AC anymore.
The ‘old’ reference to the master equipment AC inside the notifications N1 and N2 is kept.
Figure 4 Dismantled equipment ENGINE01 and ‘decoupling’ of the technical status
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The further asset history of the dismantled engine (equipment ENGINE01) doesn't have any further
influence on the technical status of the aircraft represented by master equipment AC.
After a serviceable (new or repaired) engine is installed and the functionality and fitness for
operation is approved the technical status of notification N4 can be signed.
2.2 Description of the new functionality in detail
2.2.1 General remark on functionaluity
The functionality is able to work in two modes:
Mode 1: After dismantling of an equipment
Mode 2: Take up backlog
Mode 1 is recommended when an equipment is dismantled with IE4N.
Mode 2 is recommended to take up the backlog of the adjustment only
The two modes exclude each other!
2.2.2 Mode 1: After dismantling of an equipment
An equipment A is dismantled from a structure that contains a master equipment M at the very top
of the structure.
The dismantling must take place in IE4N!
There are existing notifications and/or orders with a relevant technical status for the equipment A or
subordinate equipment installed into equipment A. Before the dismantling of equipment A thesetechnical status of these notifications and/or orders are reflected into the master equipment M.
The functionality determines the most severe technical status of all these notifications and/or orders
after the dismantling and is creating a notification for replacement at the old installation location
containing this technical status.
This notification can be identified by the short text which is:
TST.REPL.DISM.EQ. <nnnnnnnnnnnnnnnnnn>
<nnnnnnnnnnnnnnnnnn> = number of dismantled equipment
In our example
TST.REPL.DISM.EQ. A
If a notification meeting the following conditions exists:
reference object of existing notification is current installation location and
notification type of existing notification fits to the notification type derived by customizing
and
the notification short text of the existing notification is identical to 'TST.REPL.DISM.EQ.<nnnnnnnnnnnnnnnnnn>' (see above) and
a status object for the technical status does exist in the existing notification and
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the master equipment inside the existing notification does fit to the current one,
no new notification is created.
The technical status of the notifications and/or orders with a relevant technical status for the
equipment A or subordinate equipment installed into equipment A are signed or deleted dependingon customizing. This automatism does not make use of the authorization concept to sign or delete
the technical status, as the most severe technical status is taken over to the notification created at
the old installation location and thus preserved.
This adjustment does not take place if:
the current notification/order to be adjusted is locked by another user
the current notification/order to be adjusted has no change protection inside the current
system.
In general this adjustment can only take place when
the dismantled equipment A
o can be locked by this process
o
has a change protection in the current system
o is no master equipment
the 'old' installation location can be locked by this process
the master equipment M of the structure where equipment A was dismantled from has a
change protection in the current system.
Every important process information, warnings and errors are logged into an action log (see processflow in chapter 0).
It is possible, that notifications and/or orders to be adjusted with in the process can't be changed
because they are locked by other users. Such obstacles are documented
in the application log (Object name: /ISDFPS/LM_TST, Subobject name: ADJUST)
in the backlog table /ISDFPS/BLTSTADJ
You can take up the adjustment by starting the report /ISDFPS/TST_ADJ_AT_DISM directly via
transaction SE38.
The backlog table /ISDFPS/BLTSTADJ is containing the following fields:
CLIENT: actual client
OBJNR: object number of the object to be taken up (notification or order)
MEQUNR: number of the master equipment relevant at the point of time the dismantling of
the equipment take place
EQUNR: Number of the dismantled equipment
SUP_EQUNR: Number of the old installation location equipment
SUP_TPLNR: Number of the old installation location functional location
/ISDFPS/OBJNR: Object number of the technical status assigned to notification or order
QMNUM: Number of the notification to be taken up
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AUFNR: Number of the order to be taken up
CR_AT: Point of time backlog record was created
CR_BY: Name of the user which has created the backlog record
This backlog table is very important when a change inside the dismantled equipment structure take
place. If we have a look into the example, this might happen when
the equipment TURBINE01 is dismantled form Equipment ENGINE01
and a backlog for a notification or order assigned to equipment TURBINE01 does exist.
Without the backlog table the adjustment won’t find the a notification or order to be taken up
anymore.
The backlog table is analyzed the following way:
1.
Read 'direct' backlog data from table /ISDFPS/BLTSTADJ using
current master equipment,
dismantled equipment and
old installation location (equipment or functional location)
Remark:
It might be possible that after initially performing the adjustment functionality via
IE4N a backlog of notification and orders remain to take up (e.g. because these
objects are locked by another user). These objects are stored inside the backlog table
to take them up within the next step. The 'direct' backlog data supposed to be
available after the equipment was dismantled from IE4N with the parameters(dismantled equipment and old installation location) from above.
2. No direct backlog available. The number of the dismantled equipment and all its subordinate
equipment are used as possible 'old' installation location to analyze the backlog table
/ISDFPS/BLTSTADJ.
Remark:
This kind of backlog data supposed to be still available when the dismantling action
from IE4N take place with the parameters (dismantled equipment and old installation
location) from above and the adjustment is running the first time. All possible
backlogs from the subordinate equipment from the dismantled equipment has to be
taken into account as possible 'old' installation location.
2.2.3 Mode 2: Take up backlog
In opposite to mode 1 this mode does not create or check the notification for replacement. This
mode is only taking up all entries in the backlog table /ISDFPS/BLTSTADJ for a given master
equipment. The backlog contains all notifications an orders were the technical status can't be
adjusted (signed or deleted). When the notification or order form one backlog entry can be signed or
deleted this backlog entry is deleted.
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2.3 Customizing/Configuration
2.3.1 How to switch on the functionality?
Inside the general DFPS customizing table /isdfps/cdfpsk1 there must exist a record where
field DFPS_KEY = 'LM_TST_ADJ'
filed DFPS_VALUE = 'X' or 'D'.
If 'X’ is used, the relevant technical status of all notifications and/or orders for the equipment A or
subordinate equipment installed into equipment A is signed concerning the customizing described in
chapter 2.3.3.
If 'D' is used, the relevant technical status of all notifications and/or orders for the equipment A or
subordinate equipment installed into equipment A is set to the delete status from the DFPS technical
status customizing.
Please use the customizing report /ISDFPS/TST_ADJ_AT_DISM_CUS to adjust the customizing in
table /ISDFPS/CDFPSK1.
2.3.2 Determination of the notification type for notification which is created in this
process as replacement
Inside the general DFPS customizing table /ISDFPS/CDFPSK1 there must exist a record where
field DFPS_KEY = 'LM_TST_ADJ_NTYP'.
The field DFPS_VALUE of this record must contain a valid notification type which is taken over to
create the notification for replacement.
If no such entry exists in DFPS table /ISDFPS/CDFPSK1, the IE4N customizing for notifications created
at dismantling is used. If this customizing is also missing, adjustments cannot take place.
Please use the customizing report /ISDFPS/TST_ADJ_AT_DISM_CUS to adjust the customizing in
table /ISDFPS/CDFPSK1, too.
2.3.3 Determination of the technical status to sign the relevant status
The status to sign the relevant technical status is taken over from the additional customizing for the
technical status of DFPS which can be found in table /ISDFPS/CLMSTAD. Every relevant status (field
RELEV = 'X') must have an entry inside field ESTAT_COMPL which must contain a status that is able tosign a relevant status. Status which are able to sign a relevant status can be identified by the field
COMPL that contains the value 'X'.
When inside the general DFPS customizing table /isdfps/cdfpsk1 a record with
field DFPS_KEY = 'LM_TST_ADJ' and
field DFPS_VALUE = 'X'
every relevant status must contain a status for signing!
To change the customizing, please use the following customizing path:
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Defense Forces & Public Security → Support for Flight Operations → Technical Status →
Semantics
To check your entries please use the report /ISDFPS/TST_CHECK_CONSISTENCY.
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2.4 Process flow
The process to adjust the technical status is starting with a dismantling of an equipment inside
transaction IE4N. Please see the Figure 5 below.
Figure 5 Process flow of adjustment in transaction IE4N
It is possible, that notifications and/or orders to be adjusted with in the process can't be changed
because they are locked by other users. Such obstacles are documented in the application log (Object
name: /ISDFPS/LM_TST, Subobject name: ADJUST). You can take up the adjustment by starting the
report /ISDFPS/TST_ADJ_AT_DISM directly via transaction SE38.
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2.5 Report /ISDFPS/TST_ADJ_AT_DISM
2.5.1 Purpose of the report
Adjust the technical status of all notifications and/or orders related to a dismantled equipment and
its' subordinate equipment by calling the function module /ISDFPS/TST_ADJ_AT_DISM. Please see
chapter 2.5.2 for details
2.5.2 Parameters of the report
Figure 6 is showing the user interface of report /ISDFPS/TST_ADJ_AT_DISM.
Figure 6 Report /ISDFPS/TST_ADJ_AT_DISM
Please find the parameter description in the Table 1 below.
Parameter MeaningParameter: Dismantled equipment
Sub screen area: Mode 1: After dismantling of an
equipment
Technical name: PEQUNR
Equipment dismantled before by IE4N
functionality.
Parameter: Equipment
Sub screen area: Mode 1: After dismantling of an
equipment → Old Installation location
Technical name: PSEQUNR
Old installation location equipment
Parameter: - (invisible)
Sub screen area: Mode 1: After dismantling of an
equipment → Old Installation location
Technical name: PSTPLNR
Old installation location functional location.
This parameter is invisible and is used only for
background processing when this report is
called via SUBMIT from function module/ISDFPS/LM_TST_ADJ_AT_DISM_BTC. This
parameter contains the internal func. loc.
number.
Parameter: Functional location
Sub screen area: Mode 1: After dismantling of an
equipment → Old Installation location
Technical name: PSSTRNO
Old installation location functional location in
the external format. This parameter is used
when the report is used in foreground.
Parameter: Master equipment
Sub screen area: Mode 2: Take up backlog
Technical name: PMEQUNR
Number of the master equipment were the
backlog should be taken up.
Table 1 Parameters of report /ISDFPS/TST_ADJ_AT_DISM