AMTS - Aviation Maintenance Tracking System: Software designed to track your fleet.
Information You Need.         When you need it.         Where You Need It.


The AMTS tour is divided into the two main areas - Setup and Routine Management.



A quick word on Security. Your Alto AMTS web is secured so that only you and those you authorize can access and modify data in your web.

Managers can Add, Delete or redefine the roles of users by clicking the "Setup" menu item and then selecting "User Details".

There are four levels of security that define what users can and cannot do on AMTS. These levels are called "User Roles" and the privilages are defined in the following chart.

User Role

Can view all information.
Cannot make any changes.


Can view all information.
Cannot make any changes except as follows...
Can change their own password.
Can update the Logs on any Part.


Can view all information.
Cannot make any changes except as follows...
Can change their own password.
Can update the Logs on any Part.
Can add new Maintenance Records.
Can update Maintenance completed.

Manager Full access to change any information including adding, editing and deleting Parts, Logs, Requirements, Records and Users.



There are three basic items in Alto-AMTS; Parts, Maintenance Requirements and Maintenance Records. The key to understanding how to use Alto-AMTS is in understanding these three items - it is what makes AMTS so flexible and such a powerfull tool.

A Part is any specific item that you wish to track the maintenance done to it. For the maintenance side of AMTS, parts will always have some way of uniquely identifying them, like a serial number. Some examples of parts are "N123GK" (a US registered aircraft), or "BVA6090" (a Harzell Propeller)

A Maintenance Requirement (referred to usually as just "Requirement") is a description of a single Maintenance Requirement for one or more Parts. For example "100 hour Inspection" is a Requirement that might apply to all the Airframes in your organization and is repeated every 100 hours of flight time.

A Maintenance Record is a description of which Requirement is due/completed on which Part and at what time. For example "100 hour inspection due on N123GK at 12,100 hours"

When you setup AMTS for your organization, you will tell AMTS about all the parts you will be tracking, all the Requirements for those parts, and then set a New Record for each time a Requirement applies to a Part.

Once AMTS is set up, all you need to do is periodically update the Airframe logs, check the forecast for upcomming maintenance and update each of the Records for maintenance you performed.

Alto-AMTS comes with a basic setup which includes common items such as the 'Airframe', 'Engine' and 'Propeller' Categories.


A Part is simply any part that you want to track in terms of Days, Hours, Cycles. The following are good examples of Part; Turbine Wheels, Compressor Wheels, Engines, Propellers, and Airframes.

Part are organized in Categories and Sub Categories. For example, airframe "C-TEST" (a Part) might be a "Metro SW-3".  The Category used here is "Airframe", and the Sub Category is  "Metro SW-3".

Alto-AMTS comes installed with the Categories "Airframe", "Engine", and "Propeller" already in place.  Generally speaking, Categories describe what a Part is (Airframe, Engine, First Stage Turbine Wheel, etc.) and Sub Categories describe the specific model ("PA-31", "TPE-331-6", "First Stage Turbine Wheel (867569-1/-3/-7)", etc.)

Adding Categories, Sub Categories & Parts

Adding your fleet is very simple.  Start with one aircraft and use the "Add Part Wizard" to add the airframe, then add each item attached to the airframe that you want to track separately.

Scenario 1: The Part Number already Exists in AMTS...

If the Part Number already exists in AMTS, then you can just enter it and click "Continue...". If you don't know the exact part number then click "Browse" to find it. Once you click "Continue", AMTS directs you to the Serial Number Summary page for the Part Number you entered.

The top part of the page give you space to enter in a new serial number. For the Part Name, enter a name that uniquely identifies the part - it doesn't have to be the serial number, but should be a name that you will recognize. e.g. You can use the registration instead of the serial number if the part is an airframe. Names like "Engine #1" are not good, as that name will loose meaning if you move the engine to Stores or another airframe. Select the location of the new Part - "Root" means that you will see it under the Aircraft Menu and on all reports. Generally, only Airframes are "Root Components". If it's an engine that belongs to a certain airframe, then select that airframe as the Location. If you keep a log for the item, the you will probably want AMTS to keep a log as well, so check "Requires Log". and enter the current hours and cycles. Next, click "Add Serial Number" and AMTS will add it to the inventory and show the new Part in the list at the bottom of the Serial Number Summary page.

Click the "Details" link of the same line of your new Part to view the Part Details Page.

Scenario 2: The Part Number Does Not Exist in AMTS...

If the Part Number doesn't exist in AMTS, then click "Add New Part Number" to add it. This part of the wizard will ask you information about the new Part Number. Select the Category and Sub Category. If an appropriate Category or Sub Category are not in the list, then type in a new Category or Sub Category in the space provided and click "Add Category" (or "Add Sub Category"). Identifying the Supplier is optional, but usefull when it comes to Part Numbers that you re-order often. In Step 5 of this page, enter a name that uniquely identifies the part - it doesn't have to be the serial number, but should be a name that you will recognize. e.g. You can use the registration instead of the serial number if the part is an airframe. When you click "Add Part No. & This Serial No", AMTS will add these two items (the new Part Number, and New Serial Number) and redirect you to the Part Details page. Names like "Engine #1" are not good, as that name will loose meaning if you move the engine to Stores or another airframe. Select the location of the new Part - "Root" means that you will see it under the Aircraft Menu and on all reports. Generally, only Airframes are "Root Components". If it's an engine that belongs to a certain airframe, then select that airframe as the Location.

In both cases, you end up at the Part Details page. When you get to the "Part Details" page of the New Part Wizard, most of the fields are self explanatory.  Click here to learn more about each field.

The next step normally done, is add a Maintenance Requirement and Record. Once you have confirmed the information in the Part Details page, and have saved them by clicking "Save Changes", then click "Add Records" to move on.



Requirements describe what kind of work is required.  For example, "100 hour Inspection", or "Fuel Pump Assembly Overhaul" describe recurrent work required on a Part.  "7,000 Cycle Life Limited" describes a non-recurrent Requirement (in this case, a Requirement to replace the a part).

Once a Requirement is entered into the system, you can create a Record that tells the you what Requirement is due on what Part.  For example, "C-GABC" requires "100 hour inspection" at 12,200 hours.

Adding Maintenance Requirements

It's easiest to add Requirements once you've finished adding a new part. If you have the Part Details page (found at the end of the New Parts Wizard, or by opening a part and clicking on the name of the part), then just click "Add Records" at the bottom. You can also start by opening the part in the menu and clicking "Add Records"

AMTS starts you off here by asking you to select an existing requirement. If your requirement exists in the system, then select it and click "Move on to Record" to add a record of this requirement in the system.

If your requirment does not exist in the system, then you need to click the "Create New Requirement..." option and start filling in the details.

The Requirements form has space for a number of items you can use to help you remember what maintenance is required (e.g. "Service Bulliten").  Enter the information or leave them blank.

The "Applies only to..." box tells AMTS what type of Part this requirement applies to.    This feature exists to help prevent errors.  Select the applicable Category , etc. so that you and other users will only be presented with appropriate Requirements when adding a Requirement to a Part at a later date. The rule of thumb here is to select as little as possible - If your requirement applies to ALL airframes, then select "Airframe" and nothing else for Sub Category and Part. If it applies to ALL PA-31s but no other airframes, then narrow it down by selecting this Sub Category. In rare cases, a requirement applies ONLY to one specific part (say, one airframe identified by serial number and possibly other factors) - in these cases, select the Actual Part. Generally, you will be creating more work for yourself by selecting the specific part, so avoid it if you can.

The next box, "Recurrent / Life Limited" box, is the most important information for a Requirement.  Here, you specify when the Requirement is due.  You simply enter the limiting information.  For example, if an inspection is due every year, then enter "1" in the "Years" field.

The "Searches for this item should look an additional..." box is used for Requirements that require long lead times.  Lets say that you might normally use the Forecast feature of AMTS to look ahead 50 cycles, but you want to order a new hot section 6 months in advance to take advantage of better pricing.  In this case, if you wait until you see the Requirement listed in the Forecast page, then you will probably have to order the hot section to be delivered much sooner.  You can get around this problem by entering the approximate number of cycles for 6 months in this box.

The next section is used for Requirements that end after a period, but a different Requirement begins at that time.  For example, you might have a TBO of 2,000 hours on an engine at the end of which the engine goes on an "On Condition" program.  You could start the "On Condition" Requirement at the end of the "2,000 TBO" Requirement.

Last, is the Trends check box.  If the only purpose of this Requirement is to monitor trends, then leave this box checked.

Editing Maintenance Requirements


To Edit a Maintenance Requirement, find the Requirement by navigating the menu from the Requirements section.

Next, Click the item name to view and edit the changes.

Deleting Maintenance Requirements

To Delete a Maintenance Requirement, follow the steps to Edit the Requirement you want to delete, and then click the "Delete" button.



Alto-AMTS keeps a log for Parts that are marked as "Requires Log".  In each log, it tracks the Hours, Cycles,  the name of who made the log entry, when, and where the Part was when the log entry was made.

Updating a Set of Logs
To make an entry in a Part Log , find the Part in the menu and open the Part Details page by clicking on the Part.

A Log entry is as simple as changing the new totals (Hours, Cycles) and then Clicking "Save Changes".  The name of the currently logged on user, a Date & Time Stamp, Where the Part is located and other information is automatically entered.

Each time you update a Log, you have the option of creating a log entry for all other Part attached (Attached Part) or just this one Part.  The default is to update all Attached Parts.  For example, if C-FABC was previously at 100 hours, and now is at 101 hours, then each Attached Parts will have 1 hour added to it and a Log entry made for that Attached Part if it requires a log.

Corrections are simple.  Change the hours, etc. to the correct value and add an optional explanatory note in the Notes section (e.g. "Hours corrected for error on 5 July, 2002) before clicking "Update Part"

If a component becomes out of sync (for example, if it was taken off the airframe in reality, but not in AMTS, but updated anyways), the you can correct the times by finding the specific component (e.g. the offending engine) and updating just the engine and attached components.

Often personnel updating the logs are not maintenance personnel and are responsible for updating several logs at the same time. You can update several Airframes from the same page by using the "Update All Logs" link found just under the Aircraft section of the menu.

There are two ways you can update logs from this page. You can either enter the new total hours or cycles under the "Hours" and "Cycles" Columns, or you can just enter the change in time in the "+/-" columns. In the example above, if you wanted to update the hours for N123GK to 5686.7, you could either change the value in the Hours column from 5685.6 to 5686.7 or you could enter 1.1 in the "+/- Hours" column. Next, click "Update Row" on the same row as N123GK.

Viewing the Log for a Part
Simply find the Part on the menu and click "Log" directly underneath that Part.  There is a "Log" button for every Part.

Alto-AMTS will display the last 20 lines in the log.  You can view previous entries by clicking on the page numbers at the bottom of any log page.


Maintaining the Maintenance Records

A Record has two functions;

  1. When a Record is first created, it describes "A Requirement Due on a Part at a time determined by the Requirement."  For example, it might say, "A 100 hour inspection is due on C-TEST when it reaches 9,200 hours."
  2. Once the Requirement has been satisfied, we Update the Record so that it describes "A Requirement was complied with on the Part at a certain date."  For example, it might say, "A 100 hour inspection, which was due on C-TEST at 9,200 hours, was complied with at 9,204 hours on 20-Jul-2002."

For recurrent Requirements, Alto-AMTS automatically creates a new Record to reestablish another due period, bringing us back to step 1.

Adding New Maintenance Records
If the Requirement already exists in your web then find the Part you wish to add the Record to and click "Add Record"

The Add Record page will display only the Requirements that are applicable for the Part you selected.  If you change the Part, then the page will update the list of Requirements and allow you to continue adding Records.

Add as many as you like for as many different Part (even though you started with one Part, you can continue and add Records for other Part without going back to the menu).

It is important to note that the Due fields are for the Part your are working on, and not the parent!  For example if your are working on a Part that is an Engine (attached to an Airframe) and the Requirement is "2,000 hour TBO", then you should enter "2000" in the Due Hours field, and not the airframe time when the TBO would be due.

Viewing and Editing Records
You can view the Record History of any Part by finding that Part in the menu and clicking "History"

A page will appear that lets you select the Requirement you want the history for on that Part.  Select it and click "Refresh".

Click "Detail" on any Record to view the details and edit it. 

Maintenance Forecast

The Forecast sectioin is the most efficient way to get a snapshot of a single Airframe or your whole fleet.  The forecast section filters out all the Records due for an airframe and all the Part attached to that airframe.

You can specify how far ahead you want to look by entering limits in the filter boxes at the top of the page.

An "Update" link is located beside each record on the Forecast Page, so that you can easily update that item.  AMTS opens a new browser when you click this link so you can update the record, close the new browser and not loose your place on the Forecast Page.


Updating Maintenance Records

Once you have (physically) completed a maintenance requirement that is in AMTS, you will want to update that Record to show that this work was completed.  In addition, if the requirement is recurrent, then you will want to create a new Record to remind you to complete it again some time in the future.

This process is very easy in AMTS, as the web will step you through updating your record in a logical manner.

Start by finding the Record you want to update from the Forecast section (described above), and click the Update link.

A new browser will open and display this record for you to update.  Enter the current Hours/Date/Cycles of when the work was completed.   You only need to enter the one that is applicable - for example if the item was due every 100 hours, then enter the hours (you don't need to enter the date, but you can if you wish.)

Click the "Update Record" button at the bottom of this page.  Your update has now been saved.  If the Requirement is recurrent (e.g. every 100 hours, or every year), then AMTS will create a new record for your showing the new due date/hours/cycles.  Check the information for accuracy and then click "Save New Record".  You are now finished with this record and can close the new browser.

Editing Maintenance Records

On occasion, you may find that the information you entered in a Record was incorrect.  You can easily change this information by simply finding the record from the Forecast menu and clicking "Edit".  Once you have made your changes, click "Save".


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