$1.$ Using the information provided and the list of attributes below $($no additions$),$ create an REA data model that illustrates the classes, associations, and multiplicities.

$2.$ Develop a data dictionary that lists the tables needed to support Catch$-22\text{'}$s plane maintenance and crop dusting processes. Use all the attributes provided, underline the primary key in each table, and place an asterisk next to each foreign key.

$3.$ Create business process maps that detail the steps involved in the plane maintenance and crop dusting processes.