Weight and Balance

Overview

This section will cover creating a Weight and Balance form from AMI. Like other pages inside AMI, the Weight and Balance is divided into three cards: Instructions, Audit Contents, and Weight & Balance Worksheet. Use the Collapse Card icon to open and close different sections of this page.

To get started, click the Actions menu on the Requested & Picked section on the at the top of Parts/Services/Tools and select Weight and Balance. This will open a window to the Weight & Balance Worksheet.

Instructions Card

The Instructions Card at the top of the screen explains the origin of the Weight and Balance “source data” and how to review the contents of the worksheet.

Instructions Card

Audit Contents

This section will allow you to review the parts that are included in your Weight and Balance. You will notice different warning icons in the Status column – these icons denote potential errors. Mouse-over the icon to view the nature of the warning. For example, mousing-over a Red Warning Triangle will tell you that the item has been marked to be included in the weight and balance, but either the item is not picked or no weight has been provided. To add a weight value to your part, click the part number in the Requested & Picked section on the work order, click on the part number to link to the inventory system, and then add the weight to the Master Part Record. By adding the weight to the Master Part Record, this weight will be available for this and future weight and balance calculations.

An Orange Warning Triangle means that the picked quantity is different than the requested quantity. A Blue Warning Triangle means that picked items are not in the weight and balance. A Green Checkmark means there are no obvious issues. Warnings are not necessarily errors – for example, excluding items with negligible weight, is normal.

Audit Card

Weight & Balance Worksheet

To begin the Weight & Balance Worksheet calculations, you will need the “Aircraft As Received” weight. This information can be obtained from previous maintenance records in your customer’s logbook or by using a scale to weigh the aircraft.

If you are using a scale to determine the “Aircraft As Received” weight, click the View Scale Calculator to expose this calculator tool.

Complete the form, then click the Insert into Sheet button, which will load the calculated Basic Empty Weight, the Longitudinal CG, and the Longitudinal Moment into the Weight & Balance Worksheet. Then
enter the aircraft’s Max Gross Pounds from the maintenance manual.

Scale Worksheet Example

The Weight & Balance Worksheet will then calculate the values and show you the Aircraft As Modified weight. Select the Show Lateral Settings to expose the Lat Arm input fields (typically used in helicopter weight and balance calculations). Enter the Long Arm and Lat Arm values, make any necessary adjustments to the Unit Wgt column, then click the blue Save button.

Weight & Balance Worksheet Example

To view the PDF of the Weight & Balance click the Save Data & View Report. From this page, you can email the PDF to your customer by clicking the Email icon or download the PDF by clicking the Download icon.

If you see an error in the PDF or need to change something in the worksheet, click the Back to Worksheet link to return to the Weight & Balance Worksheet. Clicking the Archive button will add the PDF to your Document History located in the Customer Documents Tab.

Sample Document History