## Why Was The Compressed Air System Not Maintained?

There was no preventive maintenance routine in place. 

## Step 2 Why Was The Rejection System Not Functioning?

The compressed air reject system operating the reject mechanism failed. 

## Step 3 Why Did The Compressed Air System Fail?

The system was inadequately maintained. 

## Step 4 Why Was The Compressed Air System Not Maintained?

There was no preventive maintenance routine in place. 

## Step 5 Why Was There No Preventive Maintenance Routine In Place?

The compressed air system had recently been purchased and routine maintenance requirements had not been assessed. 

 

## Best Practice: