GB2466835A

GB2466835A - Managing and recording servicing data

Info

Publication number: GB2466835A
Application number: GB0900403A
Authority: GB
Inventors: Mark Drummond
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-10
Filing date: 2009-01-10
Publication date: 2010-07-14
Also published as: GB0900403D0

Abstract

Apparatus for recording the details of the servicing of an item of equipment is disclosed comprising a first computing means, holding the unique reference number and the servicing information for a particular item of equipment at a particular time, and a second portable computer means, which can download, either wirelessly or through a wired link, the unique reference number and the servicing information for a particular item of equipment from the first computing means. The Service Engineer takes the second computer out to the item of equipment, confirms its identity via signals to and from a Radio Frequency Identification (RFID) tag, preferably passive, attached to the item and undertakes the servicing / maintenance specified in the download and accessible on the second computer. Details of the servicing are input to the second computer immediately after the servicing is complete and subsequently uploaded on to the first computer for processing and storage. The stored data may be archived off site for additional security.

Description

APPARATUS AND METHOD FOR SAFETY TESTING OF ELECTRICAL I

ELECTRONIC EQUIPMENT AND RECORDING THE RESULTS THEREOF

This specification relates to the means of servicing of items of equipment, whole systems or parts of systems and recording the results of the work. It is particularly relevant to the safety testing of electrical / electronic and I or mechanical equipment but is also applicable to a range of similar activities.

In this context, servicing' means any / all or any combination of visual or hands-on (touching) inspection, maintenance, whether planned or breakdown, including replacement of parts, calibration or validation of any item of equipment, whole system or part of a system, including particularly any Level 1 item / system. Level 1' means any item / system where failure would have catastrophic results, e.g. lead to an explosion in the surrounding environment such as in a mine or at a petroleum installation, cause a ship to sink, a plane to crash or prevent a submarine from re-surfacing, etc. Most items of equipment, whether electrical or mechanical in nature, require periodic servicing and testing to ensure that they are working properly and safely. Certain items, such as electrical meters and alarms, may also require calibration to check, or adjust, the accuracy of the readings. In many cases, proof of calibration, or testing, is required but it is mandatory if the items of equipment are to be used in certain specific locations, e.g. petroleum installations. Often proof of calibration I testing is by placing a sticker prominently on the item so that a user can see that it has been checked and is validated for use until the date shown on the sticker. While this is a perfectly acceptable for some applications, it is vulnerable to abuse, e.g. changing the validation date or applying a sticker when it has not been checked.

However, there are certain applications when auditable, proof-positive of validated checking is essential, e.g. for safety and operating equipment in nuclear plants, or in potentially explosive environments, such as oil / gas production facilities, oil refineries, etc. and all relevant items of equipments in such installations are documented and have strictly defined validation regimes. Here every piece of servicing and validation check is rigorously supervised and the work documented. Usually, paper documentation is backed up on a computer on the site and also on another one at a remote location so that, in the event of a catastrophe at the site, such as the North Sea Oil Rig Piper Alpha explosion and fire, a full set of maintenance and validation data will be available for Accident Investigators to examine in their efforts to identify the cause of the mishap.

I

The normal procedure for servicing and / or validation of safety-related equipment is for a skilled person to:- 1. Obtain the relevant documentation stipulating what inspection / maintenance I validation procedures are to be undertaken on a specific item of equipment at that particular time; 2. Identify where that item of equipment was located and gain access to it (often by providing high level safety access); 3. Confirm the identity the item by verifying its reference number arid checking what level of inspection I maintenance / validation was required; 4. Undertake visual inspection of equipment (e.g. for impact or abrasion damage, etc); 5. Undertake hands-on inspection by touching (eg. to feel for loose mountings, insecure covers, etc.); 6. Undertake a full internal inspection (e.g. removal of covers, checking connections for tightness, checking glands and grommets, effectiveness of insulation, etc. This would also include replacement of defective parts or those covered by planned maintenance.); and 7. Complete the documentation.

The completion of the documentation would usually involve a paper record on the job or immediately after it had been completed and subsequently copying this into the Site Computer's Database in the Site Office. In practice, a Service Engineer would probably plan to deal with a number of items of equipment in a particular (geographical) area or of a particular type in a shift and, when this was done, return partway through the shift, to complete the documentation in the office. According to the strict Procedures for working on Level I Equipment, the documentation must be completed during the same shift and not left till a later date, when detailed memories of the actual operations might have faded.

In practice, completion of the documentation can take a very significant part of the total shift and a quarter or a third of the time, for this purpose, is not uncommon. Clearly, to avoid overrunning on the shift, the Engineer must allow adequate time for the desk work and so will tend to minimise on the number of items of equipment to be serviced in the shift.

Thus, to comply fully with the Procedures (which is mandatory), will result in minimising the number of items of equipment, which can be serviced in a given time, thus increasing costs. Consequently, there is a need for a more efficient way of working, to use the time available more effectively and so reduce overall costs.

According to the invention, there is provided apparatus for use in recording the details of the servicing of an item of equipment comprising:-i) a first computing means capable of processing and storing data and of downloading some! all of the stored data on demand and of having other data uploaded into it, processing that data and adding that processed, uploaded data to the already-stored data and so forming a new data store; ii) a second computing means, adapted to be hand-holdable and portable, and capable of accessing the first computing means, receiving data downloaded therefrom and having a means to display information and a means to input data, processing the input data, collating and storing it and uploading the stored data on demand and further having transmitting and receiving capabilities for two-way communication with a RFID tag; iii) a means to identify an item of equipment to be serviced at a specific time and using the second computing means to access the first computing means and downloading the relevant unique reference number and servicing information on to the second computing means; iv) gaining access to the item of equipment and operating the transmitting and receiving means on the second computing means to communicate with the Radio Frequency IDentification (RFID) tag fast with the item of equipment to confirm the identity of said item of equipment; v) undertaking on said item of equipment the servicing operations prescribed in the servicing information downloaded from the first computing means and displayed on the second computing means; vi) inputting into the second computing means the details of the servicing operations performed on the item of equipment; and vii) uploading these input details of the servicing operations from the second computing means into the first computing means for appropriate processing collation and storage; characterised in that the first computing means is essentially static at a central location and that the servicing engineer downloads the servicing information onto the second computing means, takes the second computing means to the item of equipment, gains access to the item of equipment, accesses the RFID, fast with the item of equipment, to confirm its identity, undertakes the prescribed servicing operations, inputs details of the servicing operations performed and thereafter uploads the input details into the first computer for processing, collating and storing for future use.

According to a first variation of the apparatus of the invention, the item of equipment is a conventional item of electrical / electronic and I or mechanical equipment.

According to a second variation of the apparatus of the invention, the item of equipment is S a Level 1, or equivalent, item of electrical I electronic and I or mechanical equipment, the failure of which would have a catastrophic consequence.

According to a third variation of the apparatus of the invention, the item of equipment is a whole system, or part of a system, consisting of conventional or Level I items of electrical / electronic and I or mechanical equipment.

According to a fourth variation of the apparatus of the invention, the first computing means is a site computer, part of the processing capability of which is dedicated to handling and storing of the servicing and validation records of all appropriate items of equipment on the site.

According to a fifth variation of the apparatus of the invention, the second computing means is a hand-holdable, stand alone computer, which may be freely carried around the site and operated as and when and where required.

According to a sixth variation of the apparatus of the invention, the second computing means is provided with a display screen and keys with facilities to input alphanumeric data and to control the operating functions of the computing means, such as the two-way radio communication with the RFID tag.

According to a seventh variation of the apparatus of the invention, the first and second computers are provided with means to communicate with each other either by a direct hard wire or by a remote electronic transmission.

According to an eighth variation of the apparatus of the invention, the item of equipment to be serviced is identified by a unique reference, which is stored both in the first computer and in the RFID tag fast with said item.

According to a ninth variation of the apparatus of the invention, the unique reference number provides access via the first computing means to the servicing history and other relevant information relating to the item of equipment, some or all of which may be downloaded onto the second computing means.

According to a tenth variation of the apparatus of the invention, the data downloaded from the first computing means into the second computing means is the unique reference number and the relevant servicing information for that particular item of equipment at the particular time when the servicing is due, and any other information relevant to that item of equipment and I or that servicing time.

According to an eleventh variation of the apparatus of the invention, the second computing means is taken to the item of equipment and the unique reference number of said item is accessed via radio signals between the second computing means and the RFID tag fast with the equipment and confirmed against that downloaded from the first computing means.

According to a twelfth variation of the apparatus of the invention, the servicing operations specified in the display on the second computing means are performed on the item of equipment and, immediately after servicing, details of the work completed are input by the Service Engineer into the second computing means, together with any other relevant observations.

According to a thirteenth variation of the apparatus of the invention, the second computing means is connected, either directly by hard wire or remotely by an electronic signal, to the first computing means and the input details of the servicing operations are uploaded into the first computing means and appropriately processed.

According to a fourteenth variation of the apparatus of the invention, the updated and processed servicing details are archived onto one I more third computing means at a location(s) remote from the site.

According to the invention, there is provided a method for using apparatus for recording the details of the servicing of an item of equipment comprising:-i) accessing a first computing means and downloading the unique reference number and the servicing information for a particular item of equipment at that particular time and uploading the data into a second computerised means; ii) taking the second computerised means to the item of equipment to be serviced; iii) gaining access to the item of equipment to be serviced and using a facility on the second computerised means to transmit a signal to the RFID tag, fast with said item, and receiving a return signal from said RFID tag; iv) using the second computensed means to read the unique reference number from the RFID return signal and comparing it with the unique reference number downloaded from the first computer and confirming that they match; v) using the second computerised means to display the servicing information for the particular item of equipment at that particular time; vi) undertaking on the particular item each of the prescribed servicing operations displayed in the servicing information; vii) inputting details of the servicing operations undertaken into the second computerised means; and viii) uploading the input details from the second computerised means into the first computing means for processing, adding the processed details to the servicing record of the item of equipment and storing the amended record; characterised in that the second computensed means is a hand-holdable, stand alone device, which may be carried by the Service Engineer to the item of equipment and used adjacent to said item before servicing operations are commenced, used during them (if required) and used after they are completed and subsequently taken to an appropriate location for the input servicing operation details on the second computerised means to be uploaded into the first computing means for processing and storage.

According to a first variation of the method of the invention, the method of communication between the first and second computing means is via a hard wired connection.

According to a second variation of the method of the invention, the method of communication between the first and second computing means is via a remote electronic transmission.

According to a third variation of the method of the invention, special means are used to gain access to the item of equipment if said item is in an elevated or difficult-to-access location.

According to a fourth variation of the method of the invention, the unique reference numbers and servicing information for a plurality of items of equipment are downloaded together into the second computing means and each of the items of equipment serviced in turn and the service details input into the second computing means and then the input data from the servicing of all the items of equipment are uploaded onto the first computing means.

According to a fifth variation of the method of the invention, the plurality of items of equipment to be serviced is all located in the same area of the site.

According to a sixth variation of the method of the invention, the plurality of items of equipment to be serviced is all of a similar type or classification.

According to a seventh variation of the method of the invention, the updated service record in the first computer is archived to a third computer(s) remote from the site.

In a preferred application of the invention, the Service Engineer identifies a number of items of equipment requiring attention and downloads the unique reference numbers and servicing requirements for each onto his / her hand-holdable computer from the site computer. He I she then goes out onto the site to the first item of equipment and interrogates the RFID tag fast therewith and, via the unique reference number, confirms that this is the correct item requiring attention. Using the hand-holdable computer, he / she reads from the screen what servicing is due and undertakes that. When this is finished, he / she enters details of the servicing performed into the computer, via the input keys, before moving on to the next item to be serviced and repeating the process.

When all identified items have been serviced, as prescribed, the Service Engineer returns to his I her office, connects the hand-holdable computer to the site computer and uploads the servicing input for processing and collating with the previous records. It is preferred that these updated records are archived to another, secure computer(s) off the site as some accidents have resulted in complete destruction of the whole site. In this eventuality, all the service records would then be available for subsequent inspection by Accident Investigators.

For a clearer understanding of the invention and to show how it may be carried into effect, reference will now be made, by way of example only, to the accompanying drawings in which:-Figure 1 is a diagrammatic representation of a second computing means communicating with a first computing means; Figure 2 is a diagrammatic representation of the second computing means of Fig. I communicating with the RFID tag fast with an item of equipment to be serviced; Figure 3 is a diagrammatic representation of the item of equipment in Fig. 2 being serviced and the details of the servicing being input into the second computing means of Fig. 1; and -Figure 4 is a diagrammatic representation of the second computing means of Fig. 1 communicating with the first computing means of Fig. 1.

In the following description, the same reference numeral is used for the same component in different Figures or for different components, fulfilling an identical function.

Referring to Fig. 1, a second computing means I is a hand-holdable computer, comprising a display screen 3 and an array of keys 4. Keys 4 include control keys for causing computer 1 to operate in particular ways and alphanumeric keys for entering data into computer 1. Computer 1 possesses appropriate memory and computing functions (not shown). A first computing means 2 may be any appropriate type of computer but typically would be the fixed site computer, accessible via a number of satellite terminals.

Computers I and 2 communicate via a removable connection 10, which allows computer I to interrogate 1OA computer 2 and to download information lOB, which is storable in the memory (not shown) of computer 1. In practice, the data lOB downloaded would be the unique reference numbers and service requirements for each of a specified I OA number of items of equipment 5.

Referring to Fig. 2, the Service Engineer has travelled to the location of one of the items of equipment 5 and gained access to it. In the context of this disclosure, the item of equipment 5 could be anything from a pump, motor, gearbox, etc. to a switching unit, fuse box, wiring run, pipeline, etc. all of which have to comply with appropriate regulations and require periodic servicing and I or inspection. From short range, the Engineer uses computer 1 to send a radio signal 8 to Radio Frequency IDentification (RFID) tag 6. Part of the energy in signal 8 is absorbed by tag 6 causing it to respond 9 transmitting its unique identification reference number back to computer 1. This unique reference number is checked inside computer 1 against that downloaded I OB confirming that item of equipment 5 is the one required on the service schedule lOB. RF1D tag 6 is fast 7 with equipment 5.

(Radio signals 8, 9 are shown as dashed lines to distinguish them from hard wire connections 10.) In the event that the unique reference number was not confirmed, computer 1 would prominently advise the Engineer.

Looking at display screen 3, the Engineer will see what level of servicing is required on item 5. This could be a simple visual inspection, perhaps followed by hands-on touching item 5 to ensure that it is firmly located and nothing is lose or damaged. Alternatively, this could be a full maintenance service, e.g. isolating the equipment, removing covers and checking connections for damage, or parts for wear, changing oils or hydraulic fluids, etc. This level of maintenance would include replacing parts scheduled to be replaced after a specific time in service (i.e. planned maintenance) and / or replacement of damaged or faulty parts. The servicing process is indicated by arrow 11 in Fig. 3.

As soon as servicing 11 is complete, the documentation record is entered 12 into computer I via keys 4, i.e. this is done on site as soon as the servicing is complete. Because of the downloaded data lOB, the input of data 12 may be simplified by scrolling down to the appropriate step in the servicing procedure and inputting the requisite information, which may be just pressing a single key 4, e.g. to confirm that the check had been undertaken.

Thus, the documentation for the particular maintenance on item 5 may be concluded quickly if there has been no particular point to note. However, if a problem had been encountered, a full text explaining this would be input 4. This would include notes for future servicing or whatever the Engineer deemed to be appropriate.

After completing the servicing 11 on a number of items 5, the Engineer would return to the site office and connect computer ito computer 2 via removable lead 10 (Fig. 4). By pressing appropriate keys 4, the data 12 of all the servicing operations 11 on all the items of equipment 5 serviced during that particular shift is uploaded 1 OC to the database (not shown) in computer 2. When this is complete an acknowledgement signal 1 OD is returned to computer 1 to indicate that connection 10 may be removed. This process of uploading 1 OC may take only a few seconds of computing time, compared to the hours previously, when the data was input by hand from paper records.

In some cases, Secretaries have been used for inputting lOG the paper records but, where non-technical personnel are employed, misinterpretation of the paper records has been known, with potentially serious consequences for Level I systems. Even if the Secretary had technical knowledge, he I she would not have been present when the servicing was undertaken and could misinterpret part of the paper record. Thus, the principle of the invention ensures that a full, true and complete record is obtained in a timely fashion, without risk of inaccuracy, i.e. a record which can be relied on in the event of an accident.

Uploading of data I OC may not be undertaken immediately when connection 10 is plugged in but the Engineer may leave connection 10 in overnight. It is a feature of computers 2 that they can prioritise work and upload data IOC from a, plurality of computers i either when other activities have been completed or at specific times of day, e.g. overnight. In this case, the following day, the Engineer would check for confirmation signal 1 OD before commencing that day's work. As the site computer 2 could be vulnerable to a catastrophic event, e.g. like that on Piper Alpha, data 1 OC is regularly archived 13 to a third computer(s) (not shown). Because this third computer(s) would be off site, i.e. safe from any possible accident, a dashed, electronic transfer 13 is shown.

The apparatus and method of the invention will enable the Service Engineer to work more quickly, more efficiently and possibly more accurately, as the servicing details are input immediately the work is complete, i.e. without the risk of a few hours delay and possible confusion (in the Engineer's memory) between different items which had been serviced.

The skilled person will appreciate the wide range of applications of the invention all falling within the scope of the principle taught herein.

Claims

Claims:- 1. Apparatus for use in recording the details of the servicing of an item of equipment comprising:-i) a first computing means capable of processing and storing data and of downloading some! all of the stored data on demand and of having other data uploaded into it, processing that data and adding that processed, uploaded data to the already-stored data and so forming a new data store; ii) a second computing means, adapted to be hand-holdable and portable, and capable of accessing the first computing means, receiving data downloaded io therefrom and having a means to display information and a means to input data, processing the input data, collating and storing it and uploading the stored data on demand and further having transmitting and receiving capabilities for two-way communication with a RFID tag; iii) a means to identify an item of equipment to be serviced at a specific time and using the second computing means to access the first computing means and downloading the relevant unique reference number and servicing information on to the second computing means; iv) gaining access to the item of equipment and operating the transmitting and receiving means on the second computing means to communicate with the Radio Frequency IDentification (RFID) tag fast with the item of equipment to confirm the identity of said item of equipment; v) undertaking on said item of equipment the servicing operations prescribed in the servicing information downloaded from the first computing means and displayed on the second computing means; vi) inputting into the second computing means the details of the servicing operations performed on the item of equipment; and vii) uploading these input details of the servicing operations from the second computing means into the first computing means for appropriate processing collation and storage; characterised in that the first computing means is essentially static at a central location and that the servicing engineer downloads the servicing information onto the second computing means, takes the second computing means to the item of equipment, gains access to the item of equipment, accesses the REID, fast with the item of equipment, to confirm its identity, undertakes the prescribed servicing operations, inputs details of the servicing operations performed and thereafter uploads the input details into the first computer for processing, collating and storing for future use.
2. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claim 1, wherein the item of equipment is a conventional item of electrical I electronic and / or mechanical equipment.
3. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claim 1, wherein the item of equipment is a Level 1, or equivalent, item of electrical I electronic and / or mechanical equipment, the failure of which would have a catastrophic consequence.
4. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claims 2 or 3, wherein the item of equipment is a whole system, or part of a system, consisting of conventional or Level 1 items of electrical I electronic and / or mechanical equipment.
5. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in any preceding claim, wherein the first computing means is a site computer, part of the processing capability of which is dedicated to handling and storing of the servicing and validation records of all appropriate items of equipment on the site.
6. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in any preceding claim, wherein the second computing means is a hand-holdable, stand alone computer, which may be freely carried around the site and operated as and when and where required.
7. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claim 6, wherein the second computing means is provided with a display screen and keys with facilities to input alphanumeric data and to control the operating functions of the computing means, such as the two-way radio communication with the RFID tag.
8. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claims 5-7, wherein the first and second computers are provided with means to communicate with each other either by a direct hard wire or by a remote electronic transmission.
9. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in any preceding claim, wherein the item of equipment to be serviced is identified by a unique reference, which is stored both in the first computer and in the RFID tag fast with said item.
10. Apparatus for use in recording the details of the servicing of an item of equipment as claimed in claim 9, wherein the unique reference number provides access via the first computing means to the servicing history and other relevant information relating to the item of equipment, some or all of which may be downloaded onto the second computing means.
11. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claim 10, wherein the data downloaded from the first computing means into the second computing means is the unique reference number and the relevant servicing information for that particular item of equipment at the particular time when the servicing is due, and any other information relevant to that item of equipment and / or that servicing time.
12. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claim 11, wherein the second computing means is taken to the item of equipment and the unique reference number of said item is accessed via radio signals between the second computing means and the RFID tag fast with the equipment and confirmed against that downloaded from the first computing means.
13. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claim 12, wherein the servicing operations specified in the display on the second computing means are performed on the item of equipment and, immediately after servicing, details of the work completed are input by the Service Engineer into the second computing means, together with any other relevant observations.
14. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in claim 13, wherein the second computing means is connected, either directly by hard wire or remotely by an electronic signal, to the first computing means and the input details of the servicing operations are uploaded into the first computing means and appropriately processed.
15. Apparatus for use in recording the details of the servicing of an item of equipment, as claimed in any preceding claim, wherein the updated and processed servicing details are archived onto one I more third computing means at a location(s) remote from the site.
16. A method for using apparatus for recording the details of the servicing of an item of equipment comprising:-i) accessing a first computing means and downloading the unique reference number and the servicing information for a particular item of equipment at that particular time and uploading the data into a second computerised means; ii) taking the second computerised means to the item of equipment to be serviced; iii) gaining access to the item of equipment to be serviced and using a facility on the second computerised means to transmit a signal to the RFID tag, fast with said item, and receiving a return signal from said RFID tag; iv) using the second computerised means to read the unique reference number from the REID return signal and comparing it with the unique reference number downloaded from the first computer and confirming that they match; v) using the second computerised means to display the servicing information for the particular item of equipment at that particular time; vi) undertaking on the particular item each of the prescribed servicing operations displayed in the servicing information; vii) inputting details of the servicing operations undertaken into the second computerised means; and viii) uploading the input details from the second computensed means into the first computing means for processing, adding the processed details to the servicing record of the item of equipment and storing the amended record; charactensed in that the second computensed means is a hand-holdable, stand alone device, which may be carried by the Service Engineer to the item of equipment and used adjacent to said item before servicing operations are commenced, used during them (if required) and used after they are completed and subsequently taken to an appropriate location for the input servicing operation details on the second computerised means to be uploaded into the first computing means for processing and storage.
17. A method for using apparatus for recording the details of the servicing of an item of equipment, as claimed in claim 16, wherein the method of communication between the first and second computing means is via a hard wired connection.
18. A method for using apparatus for recording the details of the servicing of an item of equipment, as claimed in claiml6, wherein the method of communication between the first and second computing means is via a remote electronic transmission.
19. A method for using apparatus for recording the details of the servicing of an item of equipment, as claimed in claims 16-18, wherein special means are used to gain access to the item of equipment if said item is in an elevated or difficult-to-access location.
20. A method for using apparatus for recording the details of the servicing of an item of equipment, as claimed in claimsl6-I8, wherein the unique reference numbers and servicing information for a plurality of items of equipment are downloaded together into the second computing means and each of the items of equipment serviced in turn and the service details input into the second computing means and then the input data from the servicing of all the items of equipment are uploaded onto the first computing means.
21. A method for using apparatus for recording the details of the servicing of an item of equipment, as claimed in claims 16-20, wherein the plurality of items of equipment to be serviced is all located in the same area of the site.
22. A method for using apparatus for recording the details of the servicing of an item of equipment, as claimed in claimsi 6-20, wherein a plurality of items of equipment to be serviced is all of a similar type or classification.
23. A method for using apparatus for recording the details of the servicing of an item of equipment, as claimed in claimsl6-22, wherein the updated service record in the first computer is archived to a third computer(s) remote from the site.
24. Apparatus and method for using apparatus for recording the details of the servicing of an item of equipment as described in and by the above statement with reference to the accompanying drawings.