The FOIA provides access to federal agency records (or parts of those records) except those protected from release by nine specific exemptions. These are the reason some Air Force records may not be released: 

1. Classified.
2. Internal personnel rules and practices.
3. Exempt by other statue.
4. Commercial information that would cause competitive harm.
5. Predecisional, deliberative information.
6. Invasion of personal privacy.
7. Complied for law enforcement purposes.
8. Contained in or related to examination, operation or condition reports prepared by, on behalf of, or for the use of an agency responsible for the regulation or supervision of financial institutions.
9. Geological and geophysical information and data, including maps, concerning wells. 

You have the right to appeal all denial decisions within 60 days. Send appeals to the secretary of the Air Force through the office that initially denied you the information.