content_image/586424.jpg content_image/586431.jpg content_image/586430.jpg content_image/586440.jpg content_image/586441.jpg content_image/586442.jpg
<img src='content_image/586424.jpg'>

## Documenting Changes to an Aircraft’s Weight and Balance 

The weight and balance system should include methods by which a complete, current, and continuous record of the weight and CG of each aircraft is maintained, such as a log, ledger, or other equivalent electronic means. Alterations and changes affecting the weight and/or balance of the aircraft should be recorded in this log. Changes in the weight or location of weight in or on the aircraft should be recorded whenever the weight change is at or exceeds the weights listed in Figure 9-3 . 

## Determining the Loaded CG of the Airplane in Percent MAC 

A loading schedule is used to document compliance with the certificated weight and balance limitations contained in the manufacturer’s AFM and weight and balance manual. The basic operating weight (BOW) and the operating index are entered into a loading schedule like the one in Figure 9-4,  and the variables for a specific flight are entered as appropriate to determine the loaded weight and CG. 

Use the data in this example: 

<img src='content_image/586431.jpg'>

<img src='content_image/586430.jpg'>

Figure 9-5 illustrates passenger, cargo, and fuel loading tables. Using these tables, determine the moment indexes for the passengers (PAX), cargo, and fuel. 

The airplane is loaded in this way: 

Passengers (nominal weight—170 pounds each) 

<img src='content_image/586440.jpg'>

Cargo 

<img src='content_image/586441.jpg'>

Fuel 

<img src='content_image/586442.jpg'>

The formula in Figure 9-6 can be used to determine the location of the CG in inches aft of the datum. 

